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  • 51.
    Eriksson, David
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Hilletofth, Per
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Ellram, L.M.
    Miami University in Oxford, Oh, USA.
    Sansone, Cinzia
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    To offshore or reshore: The battle of data points2018In: Supply Chain Management Review, ISSN 1521-9747, Vol. 22, no 3, p. 42-46Article in journal (Other academic)
    Abstract [en]

    [...]our research shows that not all offshoring decisions are based on the best methods or information. [...]a series of incorrect decisions made offshoring look like a great decision when it was not. [...]after years of outsourcing, Plant A was still the same size and unable to trim its overhead despite lower production levels. [...]one product became so expensive to produce internally that it was priced too high and failed in the market while lower-cost competitors thrive today.

  • 52.
    Eriksson, David
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Hilletofth, Per
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Högskolan i Gävle, Industriell ekonomi.
    Svensson, Göran
    Oslo School of Management, Oslo, Norway.
    Bengtsson, Lars
    Högskolan i Gävle, Industriell ekonomi.
    Exploring opportunities for moral disengagement in codes of conduct from the textile industry2018In: World Review of Intermodal Transportation Research (WRITR), ISSN 1749-4729, E-ISSN 1749-4737, Vol. 7, no 4, p. 371-389Article in journal (Refereed)
    Abstract [en]

    The purpose of this research is to assess how codes of conducts are outlined and formulated in relation to moral disengagement along the supply chain. The research is focused on the idea that supply chain structure may reduce the actors' sense of moral responsibility for the actions and impacts of the supply chain on workers and environment. The research has been conducted as a case study including Swedish firms in the textile industry. The research has used secondary data from codes of conducts. The findings show that codes of conduct do not cover all supply chain practices linked with moral disengagement. This does not cause immoral behaviour as such, but might cause moral disengagement. Supply chain research needs to focus on what should be included in codes of conduct and other ethical guidelines, so as to reduce the risk of immoral behaviour. In order to reduce the likelihood for moral disengagement, there are several supply chain practices that should be included in codes of conduct, such as power asymmetry, managerial support, and incentives.

  • 53.
    Eriksson, David
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Svensson, Göran
    Oslo School of Management, Oslo, Norway.
    Managers’ psychological challenges in implementing corporate responsibility in supply chains2018In: Corporate Governance : The International Journal of Effective Board Performance, ISSN 1472-0701, E-ISSN 1758-6054, Vol. 18, no 3, p. 564-578Article in journal (Refereed)
    Abstract [en]

    Purpose: This paper aims to conceptualize managers’ psychological challenges with respect to implementing corporate responsibility throughout supply chains.

    Design/methodology/approach: Four areas of psychological theory are introduced to expand the understanding of the challenges involved in implementing corporate responsibility in supply chains, namely, relationship and humanization theory; the number-of-people-suffering theory; superficial-identification theory; and the bystander effect theory.

    Findings: The common denominator between the introduced areas of psychological theory is that all consider the expected degree of corporate responsibility in supply chains to extend beyond managers’ ability to cope so that failure is probable.

    Research limitations/implications: Supply chain management research needs to consider various psychological challenges to effectively address corporate responsibility in supply chains. This research shows that it is important to include theory from psychology to truly understand the challenges faced by managers, although only a few theories are presented here. More comprehensive reviews are needed in the future.

    Practical implications: Managers require guidelines based on psychological theory to assist them in overcoming their inabilities in this context.

    Originality/value: SCM research advocates responsibility for all those affected by this phenomenon, but the lack of theoretical grounding to meet the prevailing psychological challenges hampers the efficacy of putting the current recommendations into business practice. The paper is one of only a few to address managers’ psychological challenges in dealing with corporate responsibility across organizational borders and judicial boundaries in supply chains. 

  • 54.
    Eriksson, Oliver
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Fransson, Eric
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Säkerhetslageroptimering av ingående komponenter och planeringssystemets inverkan: En fallstudie inom tillverkningsindustri2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of this study is to identify the significance of specific parameters and illustrate possible optimizations within safety stock on a component level. To fulfill the purpose, three research questions were formulated.

    [1] What parameters needs to be considered in the calculation of safety stock?

    [2] What opportunities for inventory and safety stock optimization can be identified within a manufacturing company, regarding purchased components?

    [3] How does safety stock affect risk and service level when simulating identified optimization opportunities?

    Method – The study was initiated with a pilot study in order to highlight the problem area and its context. Combined, the pilot study and literature review contributed to the creation of the purpose and research questions. The study is designed in accordance with a case study, used data collection methods included document study and interviews. The interviews generated qualitative primary data which intended to illustrate key employees’ knowledge and understanding of the researched phenomenon. The document study generated quantitative secondary data which intended to supplement and triangulate empirical data.

    Findings – Problems regarding different approaches when calculating safety stock, influencing parameters in combination with complex system environments poses a challenge for practitioners. Identification of opportunities within safety stock optimization and the selection of parameters can strongly affect the final outcome and consequently the organization’s wellbeing. The spectrum of parameters that should be considered when determining safety stock level is extensive, the impact of an individual parameter may vary depending on the context. A critical factor is to identify given circumstances, errors in judgement may cause disproportional levels of safety stock, resulting in shortage or excess inventory. Numerical calculations, taking into account a majority of parameters, proves to determine a more appropriate level of safety stock versus experience-based decisions. To only consider time period coverage based on lead time, as proven by simulation, will result in excess levels of safety stock, hence generating economical and practical implications. Therefore, studied phenomenon and similar are considered to possess favorable conditions for safety stock optimization. Complex system environments in which the studied company conduct supply chain planning, combined with advanced system logics, entails problematic situations. These conditions require a great amount of knowledge within a given system to effectively manage and filter critical information.

    Implications – The subject area safety stock in relation to optimization is thoroughly researched as proven by existing literature, hence generating new knowledge within the area is considered challenging. Despite the circumstances, this study succeeds to contribute some knowledge. The study presents and strengthens existing research regarding forecast and parameters effect on safety stock. Significant practical implications consist in revising the safety stock level in accordance to numerical calculation and differentiation of components in correlation to its importance.

    Limitations – The study only included one case company, therefore affecting the study’s generalizability. Simulation of numerical safety stock calculation within the study cannot be applied on the full range of components or similar companies. The selection of simulated components is deemed insufficient, nevertheless obtained result indicate significant possibilities for optimization within the organization. Restrictions regarding the number of investigated components and interviewed employees may have affected the final results. 

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    Säkerhetslageroptimering av ingående komponenter och planeringssystemets inverkan
  • 55.
    Fathi, Masood
    et al.
    Department of Production and Automation Engineering, University of Skövde, Skövde, Sweden.
    Fontes, Dalila B. M. M.
    Faculty of Economics, University of Porto, Porto, Portugal.
    Moris, Matias U.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Division of Industrial Engineering and Management, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden.
    Ghobakhloo, Morteza
    Assembly line balancing problem: A comparative evaluation of heuristics and a computational assessment of objectives2018In: Journal of Modelling in Management, ISSN 1746-5664, E-ISSN 1746-5672, Vol. 13, no 2, p. 455-474Article in journal (Refereed)
    Abstract [en]

    Purpose

    The purpose of this study is to first investigate the efficiency of the most commonly used performance measures for minimizing the number of workstations (NWs) in approaches addressing simple assembly line balancing problem (SALBP) for both straight and U-shaped line, and second to provide a comparative evaluation of 20 constructive heuristics to find solutions to the SALBP-1.

    Design/methodology/approach

    A total of 200 problems are solved by 20 different constructive heuristics for both straight and U-shaped assembly line. Moreover, several comparisons have been made to evaluate the performance of constructive heuristics.

    Findings

    Minimizing the smoothness index is not necessarily equivalent to minimizing the NWs; therefore, it should not be used as the fitness function in approaches addressing the SALBP-1. Line efficiency and the idle time are indeed reliable performance measures for minimizing the NWs. The most promising heuristics for straight and U-shaped line configurations for SALBP-1 are also ranked and introduced.

    Practical implications

    Results are expected to help scholars and industrial practitioners to better design effective solution methods for having the most balanced assembly line. This study will further help with choosing the most proper heuristic with regard to the problem specifications and line configuration.

    Originality/value

    There is limited research assessing the efficiency of the common objectives for SALBP-1. This study is among the first to prove that minimizing the workload smoothness is not equivalent to minimizing the NWs in SALBP-1 studies. This work is also one of the first attempts for evaluating the constructive heuristics for both straight and U-shaped line configurations.

  • 56.
    Felix, Ahlström Jönsson
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. AA008L289W.
    Implementing tracking and tracing methods for returnable containers2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 57.
    Ferreira, Ana Cristina
    et al.
    Federal University of Lavras, Lavras, Brazil.
    Pimenta, Márcio Lopes
    Federal University of Uberlândia, Uberlândia, Brazil.
    Wlazlak, Paraskeva
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design. Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Antecedents of cross-functional integration level and their organizational impact2019In: Journal of business & industrial marketing, ISSN 0885-8624, E-ISSN 2052-1189, Vol. 34, no 8, p. 1706-1723Article in journal (Refereed)
    Abstract [en]

    Purpose: The purpose of this paper is to develop a model to predict the antecedents of the integration level among marketing, logistics and production, considering the influence of formal and informal factors that generate integration and the existence of conflicts.

    Design/methodology/approach: A survey of 179 participants from all regions of Brazil was conducted. A parsimonious model including four dimensions and 34 variables was developed through confirmatory factor analysis and structural equation modeling.

    Findings: The field data corroborate studies dealing with the impact of various formal and informal integration factors on the cross-functional integration level as a construct. Furthermore, this paper concludes that the level of cross-functional can be defined as: the intensity of the relationship among internal functions which can be measured by the mutual existence of formal and informal factors and the absence of manifest conflicts.

    Research limitations/implications: The findings of this paper cannot be generalized because of the convenience sampling. Future research could apply a probabilistic sampling and try to explore other geographical settings in both national and international contexts.

    Practical implications: The proposed model can generate important information for managers by pointing out variables that can predict the integration level and their impacts on the organizational performance. The paper concludes with examples about how the model could be useful in several practical situations.

    Originality/value: This paper proposes a model with reasonable accuracy to predict the integration level and overcomes prior research limitations with respect to models to predict the antecedents of the integration level, particularly the role of conflicts in the integration processes. 

  • 58.
    Finnskog, Erik
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Furberg, Fabian
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Effektivisering av materialgenomflöde för ”Make To Order”- Företag2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of this study is to examine the material flow and production effectiveness at a Make to Order companies. To answer the purpose two research questions have been formed;

    1. What challenges do MTO companies have regarding throughput?

    2. Which tools and standards are suitable to an MTO companies for an increased throughput?

    Method – The study is based on an abductive approach in which the authors have chosen to use triangulation to answer the purpose of the study. The data collection methods used are literature studies, interviews, observations and document studies. The authors have done a theoretical review in the relevant field in order to gain an insight into the theories that exist in the area concerned. An analysis has then been made based on the empirical data collected and linked to the theoretical framework.

    Findings – The findings the authors have come up with is that there is no given method or standard for MTO (Make to order) companies to implement. The authors, on the other hand, have come to the conclusion that it is about working with several models and standards parallel in order to have a greater impact on the material flow. It is also important to know what can be standardized and what cannot be standardized if the product variation and customization are high.

    Implications – This study has the implication of highlighting the challenges that MTO companies can face with a varying degree of customization. The study also highlights the complexity that exists for the material flow at MTO companies. In this study, the authors have developed a model for the case company over how their production layout can be adapted for a higher throughput.

    Limitations – The limitations found in this study is that it is done with only one case company where data collection has been done for a limited time. The result is therefore adapted to the case company, but a recommendation from the authors is that the study can be validated on similar activities.

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  • 59.
    fintling, alexander
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Wredberg, Philip
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    En undersökning av påverkande faktorer vid säkerhetslagerdimensionering: Inom elektronik till fordonsbranschen2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of this study is to investigate how safety stock should be dimensioned for ingoing inventory based on factors in manufacturing electronic business with the vehicle industry as customer.

    - Which factors are important to have in consideration when dimensioning safety stock for ingoing inventory in the electronic to vehicle industry?

    - Which safety stock method is the most suitable considering identified factors in research question one?

    Method – To accomplish the purpose of this study and to answer the research questions, a literature study was conducted to form a theoretical framework. As a complement to the literature study a case study was conducted in terms of interviews and document studies.

    Findings – This study has identified factors that are important to take into consideration when dimensioning safety stocks. Through identified factors the most suitable safety stock method for companies in the electronic to vehicle industry was formed.

    Implications – Difficulties in this study has been to find relevant information regarding the electronic to vehicle industry. Information was necessary to find to create a trustworthy industry context.

    Limitations – This study only focus on the electronic to vehicle industry. This means that identified factors and suitable safety stock method are not necessarily applicable to other industries.

    Keywords – Safety stock calculation, delivery precision, delivery safety.

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  • 60.
    Flankegård, Filip Thomas
    et al.
    School of Innovation, Design and Engineering, Mälardalen University, Sweden.
    Johansson, Glenn
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design. School of Innovation, Design and Engineering, Mälardalen University, Sweden.
    Granlund, Anna
    School of Innovation, Design and Engineering, Mälardalen University, Sweden.
    Challenges with supplier involvement in product development: A supplier's perspective2019In: Proceedings of the International Conference on Engineering Design, ICED, Cambridge University Press, 2019, p. 2179-2188Conference paper (Refereed)
    Abstract [en]

    Studies of supplier involvement in product development have revealed potential benefits including faster time to market, reduced cost and increased quality. However, existing literature has mainly focused on the customer's perspective on advantages, disadvantages and factors to be considered when involving suppliers in product development. This paper addresses the supplier's perspective by answering following research question: How do challenges that originate from involvement in customer's product development affect a supplier? The question is answered through a single case study at a supplier that develops and manufacture products primary used in capital goods. Thirteen challenges are identified, classified as being internal or external, and categorised into five areas: (A) Customer requirements, (B) Information exchange between customer and supplier, (C) Product variety management, (D) Design-manufacturing integration and (E) Processes and work instructions. The findings suggest that internal challenges need as much attention as external ones that originate from the customer. Also, an indication of when the challenges affect the supplier during product development is presented.

  • 61.
    Forsberg, Elin
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Johansson, Malin
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Produktionsplanering i massproducerande MTO-företag: Med fokus på leveranssäkerhet och kostandseffektivitet2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose with the study is to identify improvements within production plans to ensure that they contribute to delivery dependability and cost efficiency in manufacturing companies. To be able to answer the purpose three research questions have been formulated.

    1. What factors are critical within production planning? 2. How to ensure that production plans contribute to delivery dependability respective cost efficiency? 3. How can delivery dependability and cost efficiency be balanced?

    Method – A pilot study was conducted in order to define the problem area and formulate a purpose for the study. Then a case study and a literature review were performed to provide empirical and theoretical data. The case study was conducted at a manufacturing company with a mass production and a MTO strategy. The data was collected through interviews and document studies. The literature study created a theoretical framework regarding production planning, delivery dependability and cost efficiency. Finally, the empirical and theoretical data were analysed to generate improvements.

    Findings – In the study critical factors were identified within production planning. The analysis indicated that manufacturing companies with a mass production and a MTO strategy should ensure quality and delivery dependability before flexibility and at last, cost efficiency. To manage these factors improvements were presented that can improve delivery dependability and cost efficiency at a company.

    Implications – The theoretical contribution consists of a support system how to handle critical factors within a manufacturing company with a mass production and a MTO strategy. The study contributes with an insight on how the production planning effects delivery dependability and cost efficiency in a company. The empirical contribution consists of improvements within production planning for manufacturing companies with a mass production and a MTO strategy.

    Limitations – The study is a single case study which delimitate the generalizability. The result of the study can only be generalized to other companies with a mass production and a MTO strategy and partially to companies with a mass production and a MTS strategy. The reliability of the study has been strengthened through several interview respondents together with document studies. 

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  • 62.
    Freitas, Marlos R.
    et al.
    Universidade Federal de Uberlandia, Uberlandia, Brazil.
    Pimenta, Márcio L.
    Federal University of Uberlândia, Uberlândia, Brazil.
    Hilletofth, Per
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Jugend, Daniel
    Sao Paulo State University, Bauru, Brazil.
    Oprime, Pedro C.
    Federal University of São Carlos, Sao Carlos, Brazil.
    Demand management: the role of cross-functional integration in a context of political turbulence2020In: Asia Pacific Journal of Marketing and Logistics, ISSN 1355-5855, E-ISSN 1758-4248, Vol. 32, no 3, p. 817-839Article in journal (Refereed)
    Abstract [en]

    Purpose: The purpose of this paper is to investigate how cross-functional integration supports the execution of the demand-side (DS) processes and its effects on both the demand and supply-side processes.

    Design/methodology/approach: A case study was conducted including a Brazilian multinational manufacturer in the automobile industry and some of its suppliers and dealers. In total, 17 interviews were conducted. A theoretical framework was proposed containing five basic elements: characteristics of the demand/supply processes; involved functions; integration factors; context influencers; impacts of integration on demand and supply processes.

    Findings: The findings present three DS processes (product launch, marketing and sales and demand planning) that demonstrated a greater need for cross-functional integration in the studied case, mainly through informal integration factors.

    Research limitations/implications: The empirical results of this study have methodological limitations due to the use of the case study method. Future research should analyze the effects of other context influencers (e.g. natural catastrophes, civil wars and low level of unemployment) on cross-functional integration.

    Practical implications: The results highlight that joint planning, willingness to work together, team spirit, adequate communication and cross-functional meetings helped the studied organizations to achieve competitive advantages and improve their performance.

    Originality/value: This study provides a theoretical framework that helped to improve the understanding of the interrelationships between demand management constructs and cross-functional integration factors. There are indications that a political-economic crisis has stimulated the existence of a willingness to work together and group spirit among employees who remain in the organization after mass dismissals. This climate of cooperation helped to increase the agility and resilience of the studied supply chain, which is currently affected by a changing market. 

  • 63. Freitas, M.R.
    et al.
    Pimenta, M.L.
    Hilletofth, Per
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Demand Management: The Role of Cross-Functional Integration in a Context of Political Turbulence2018Conference paper (Refereed)
  • 64.
    Gerlich, Sven Patrick
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Gottschalk, Max
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Control and Reduction of Deviations in Production Processes: An Intelligent Quality Management approach2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Companies situated in the manufacturing industry are facing many challenges.  In order to stay competitive and to be able to meet customer needs the product and process quality must be ensured through efficient Quality Management (QM) activities. In this context, occurrences of deviations in production processes are often a significant problem causing an increased rate of scraps and rework actions, which have a direct impact on the production system performance. Therefore, the purpose of this thesis is to explore the concept of IQM in connection with ways to control and reduce deviations within production processes.

    The single case study approach has been chosen to fulfill the purpose and to answer the research questions of this study. The selected case company is a large wooden furniture manufacturer located in the south of Sweden. The company is a subsidiary of one of the biggest global groups, which is designing, producing and selling furniture and home accessories. Within this case study design, a technique triangulation of observation, document study and interview has been executed in order to gather valid research data.  

    The results of this thesis are, that deviations in production processes (re-)occur due to human, technological and organizational (HTO) shortcomings, where the interfaces between the three segments play major roles. Moreover, the HTO approach can be the basis for identifying the reasons for deviations, which facilitates the adoption of QM principles, practices and techniques to handle deviations in production processes. The concept of IQM could support the control and reduction of deviations in production processes, but also entails a risk of causing more deviations if it is poorly implemented. Moreover, a framework has been created, which provides an understanding on what role IQM could play in the context of deviations in production processes. It can be concluded, that a good basis for future research regarding IQM has been built. Future research needs to verify the gathered results of this thesis in different settings as well as practically implement IQM to a company´s system.

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  • 65.
    Ghosal, Vivek
    et al.
    Department of Economics, Rensselaer Polytechnic Institute, Troy, New York, USA.
    Stephan, Andreas
    Jönköping University, Jönköping International Business School, JIBS, Economics. Jönköping University, Jönköping International Business School, JIBS, Center for Family Enterprise and Ownership (CeFEO).
    Weiss, Jan F.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Decentralized environmental regulations and plant-level productivity2019In: Business Strategy and the Environment, ISSN 0964-4733, E-ISSN 1099-0836, Vol. 28, no 6, p. 998-1011Article in journal (Refereed)
    Abstract [en]

    Using the framework provided by the Porter hypothesis, we study the impact of environmental regulations and enforcement policies on plant-level green total factor productivity (TFP) growth and its components related to efficiency change and technical change. The detailed microdata we use are from Sweden and for the pulp and paper industry. This industry is the source of significant amounts of water and air pollution and is one of the most heavily environmentally regulated manufacturing industries. Sweden has a unique decentralized regulatory structure where the manufacturing plants have to comply with plant-specific regulatory standards stipulated at the national level, as well as decentralized local supervision and enforcement. Our empirical results point to beneficial impacts of the environmental policies on plants' green TFP growth and sustainable production practices. We also find that political economy considerations are important, as the presence of the Green Party and aspects like plant size (with corresponding local and regional economic effects) matter in enforcement of the standards.

  • 66.
    Hedvall, Lisa
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Buffers in capacity management: A multiple case study2018Conference paper (Refereed)
    Abstract [en]

    A competitive delivery capability is dependent on a balance between supply and demand, a challenge that increase due to variations. This inevitably leads to a need for proper management of buffers. The purpose of this research is to investigate buffers utilized in practice in relation to a framework of buffers for capacity management. Twelve different kinds of buffers from the conceptual framework are identified in the multiple case study. The experiences from eleven respondents highlights the purposes and procedures of buffer capacity management (BCM).

  • 67.
    Hedvall, Lisa
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Reducing and absorbing variations in a manufacturing context: A capacity management perspective2019Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Variations can have substantially negative effects on performance and it is therefore important to investigate how the variations can be reduced or absorbed in an appropriate way for competitiveness. Manufacturing companies are daily exposed to variations and operations managers need to take capacity management decisions with this in mind to secure the delivery capability. The current body of knowledge mainly focus on techniques for root cause analysis for reducing variations, especially in the manufacturing processes, neglecting the fact that both internally and externally generated variations are more or less possible to affect. Buffers are traditionally associated with waste and unfavourable performance, while the right buffers can be of strategic importance. The purpose of this research is therefore to increase the understanding of causes for variations, actions to reduce variations and how buffers can be used to mitigate negative effects of variations related to capacity management in a manufacturing context.

    Three research studies have been conducted, including four appended papers, to fulfil the purpose. These studies encompassed different combinations of traditional literature reviews, conceptual research with logical reasoning and case study research. The findings demonstrate that working on mitigating negative effects of variations is a complex challenge and not just about choosing to reduce or absorb the variations. In general, it is concluded that the variation management and buffer management include several aspects to consider with implications for the capacity management. In addition, the results indicate that the decisions in manufacturing companies tend to be based on intuition and previous experience due to a lack of decision support. Furthermore, the participating companies perceive that several of their internal routines contribute to their prevailing variations. This research contributes to an awareness of causes for variations that are possible to affect, possible actions to reduce the variations and the purposes of different buffers to absorb variations. This is sought to facilitate a systematic way of working with reducing and absorbing variations, creating support in the variation management and the buffer management from a capacity management perspective.

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    Kappa
  • 68.
    Hedvall, Lisa
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Mattsson, Stig-Arne
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Addressing the causes of variations to reduce the need for buffers in manufacturing companiesManuscript (preprint) (Other academic)
  • 69.
    Hedvall, Lisa
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Mattsson, Stig-Arne
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Orsaker till variationer och åtgärder för att minska behovet av buffertar2018In: Proceedings of the Plan Research Conference, Jönköping, 23-24 oktober, 2018., 2018, p. 95-110Conference paper (Refereed)
    Abstract [sv]

    Variationer i efterfrågan, i internt genererade kapacitetsbehov, i tillgång på kapacitet och i leveranstider från leverantörer medför utmaningar för företag att uppnå kostnadseffektiva materialflöden och en konkurrenskraftig leveransförmåga. För att hantera sådana variationer finns det två principiellt olika angreppssätt. Det ena innebär att man använder sig av olika buffertar i form av extra material, extra kapacitet och extra tid för att absorbera variationerna och utgår från att förekomst av variationer accepteras. Buffertar förorsakar emellertid kostnader och kapitalbindning som måste vägas mot de fördelar som kan uppnås. Det andra angreppssättet innebär att man först försöker reducera variationerna genom att angripa orsakerna till att de förekommer med olika typer av åtgärder och genom att reducera dem kunna använda sig av mindre buffertar. Syftet med den här studien är att med utgångspunkt från detta angreppssätt utveckla ett ramverk av orsaker till att variationer förekommer och för varje orsak redovisa olika möjliga åtgärder för att begränsa dem. Avsikten är att skapa en bättre förståelse för vad det är som skapar variationer som är påverkbara i företag och ett hjälpmedel för att i praktiken identifiera möjliga åtgärder för att på ett systematiskt sätt kunna genomföra variationsreducerande aktiviteter. Syftet är också att med hjälp av ramverket studera i vilken utsträckning ett antal företag tillämpar de olika ingående åtgärderna.

    Underlag till utvecklingen av olika orsaker till variationer och åtgärder för att reducera dem i ramverket har hämtats från litteraturen inom de områden som berörs. I de fall litteraturstödet varit otillräckligt eller helt saknats har i stället underlag baserats på egna erfarenheter från tillverkningsindustrin och konceptuella logiska resonemang. Studien har resulterat i ett ramverk uppdelat på fyra olika typer av variationer och bestående av sammanlagt 22 olika variationsorsaker och 61 olika slag av åtgärder. Via fallstudien har studien också bidragit med en bild av i vilken utsträckning de olika möjliga åtgärderna används i företag i praktiken för att reducera förekomst av variationer.

  • 70.
    Hedvall, Lisa
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Mattsson, Stig-Arne
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Wikner, Joakim
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    A framework of buffers for absorbing variations in demand related to capacity management in manufacturing companiesManuscript (preprint) (Other academic)
  • 71.
    Hedvall, Lisa
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Wikner, Joakim
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Decision-Making Process for Buffer Dimensioning in Manufacturing2019In: IFIP Advances in Information and Communication Technology, Springer, 2019, Vol. 567, p. 196-203Conference paper (Refereed)
    Abstract [en]

    Systematic and stochastic variations, both endogenous and exogenous to companies, are a constant challenge for decision makers struggling to maintain a competitive advantage for the business. In response the decision maker introduces buffers to absorb variations but this does not target the source of the problem. The first step should instead be to focus on how to reduce variations and then to handle the remnant variations. In summary the first step should be to perform variation management and then as the second step buffer management should be applied. The combination of these two subprocesses represent service performance management and within this context is buffer dimensioning a key challenge. Input data, decision maker and process logic are identified as three key aspects of buffer dimensioning which are integrated and resulting in six scenarios. These scenarios unravel different conditions for performing buffer dimensioning and facilitate an awareness of a match or mismatch between current and desired situation. 

  • 72.
    Hilletofth, Per
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Adlemo, Anders
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Automatic generation of fuzzy inference rules in a reshoring decision context2019In: Proceedings of the 9th International Conference on Operations and Supply Chain Management, Vietnam, 2019, OSCM, 2019Conference paper (Refereed)
    Abstract [en]

    This paper presents a decision-support system for reshoring decision-making based on fuzzy logic. The construction and functionality of the decision-support system is briefly outlined and evaluated in a highcost environment contemplating six specific decision criteria, namely cost, quality, time, flexibility, innovation and sustainability. A major challenge with fuzzy logic solutions has to do with the construction of the fuzzy inference rules. In the relocation domain, the fuzzy inference rules represent the knowledge and competence of relocation experts and they are usually created manually by the same experts. One obstacle is that the complexity of the fuzzy inference rules increases with the number of decision criteria. To overcome this complexity issue, this paper presents a solution whereby the fuzzy inference rules are automatically generated by applying one hundred reshoring scenarios as input data. The reshoring decision recommendations produced by the fuzzy logic decision-support system are demonstrated to be close to those of human reshoring domain experts.

  • 73.
    Hilletofth, Per
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Eriksson, David
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Tate, Wendy
    Department of Supply Chain Management, University of Tennessee, Knoxville, TN, United States.
    Kinkel, Steffen
    Institute for Learning and Innovation in Networks (ILIN), Karlsruhe University of Applied Sciences, Karlsruhe, Germany.
    Right-shoring: Making resilient offshoring and reshoring decisions2019In: Journal of Purchasing and Supply Management, ISSN 1478-4092, E-ISSN 1873-6505, Vol. 25, no 3, article id 100540Article in journal (Other academic)
    Abstract [en]

    The purpose of this special topic forum is to look at some current literature on the right-shoring debate. The papers that were selected for the special topic form use a range of qualitative and quantitative methodologies to answer specific research questions related to the right-shoring phenomenon. Each of the papers is summarized in this editorial to show the findings, implications and future research directions. The ideas from these manuscripts were used as a foundation to discuss the way in which research in this area should progress. What types of questions should we be asking as we seek to discover the best “shore”? What factors and variables should we consider in our future decisions? Are there differences across regions of the world? Research in this area has continued to progress, largely because of significant global economic, environmental and regulatory changes. The “shoring” decision appears to be an area where research is keeping up with, or potentially leading practice, but there is still more opportunity to advance decision making. The included papers address a number of factors related to specific geographies and factors related to the movement of manufacturing and products and services from one location to another.

  • 74.
    Hilletofth, Per
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Reitsma, Ewout
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Eriksson, David
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Coordination of new product development and supply chain management2018In: Innovation and Supply Chain Management: Relationship, Collaboration and Strategies / [ed] Moreira, António Carrizo, Ferreira, Luís Miguel D. F., Zimmermann, Ricardo A., Cham: Springer, 2018, p. 33-50Chapter in book (Refereed)
    Abstract [en]

    New product development (NPD) and supply chain management (SCM) enable companies to respond to new demands in a responsive manner. The scarcity of research addressing the coordination of NPD and SCM is notable. The purpose of this research is to identify and examine linkages between NPD and SCM through a case study that includes a Swedish furniture wholesaler. Several linkages that stress the need of using an integrative NPD process where the design functions are aligned with other main functions of the company were identified. For example, it was observed that a strong focus on the demand side (NPD) has induced high demands on the supply side (SCM) of the case company. Therefore, the NPD process to a larger extend needs to incorporate main supply functions and other sales-related functions that support the commercialization of the product. This promises to create a consumer-oriented business, especially needed in markets where products have short life cycles and where having a short time to market is crucial. Within future research, it will be interesting to expand this research to companies that operate in different markets and/or have different objectives and to provide an inclusive description of the consumer-oriented business model.

  • 75.
    Hilletofth, Per
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Sequeira, Movin
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Fuzzy logic in a reshoring decision-making context2019In: Proceedings of the 9th International Conference on Operations and Supply Chain Management, Vietnam, 2019, OSCM, 2019Conference paper (Refereed)
    Abstract [en]

    This paper investigates the feasibility of using fuzzy logic for reshoring decision-making. To achieve this a fuzzy logic system for reshoring decision-making was implemented. The system was configured in two different ways to cover the two main fuzzy logic modeling approaches and sixteen fuzzy inference settings were used in each configuration. The research shows that fuzzy logic is a feasible method for reshoring decision-making. The reduced rule base configuration was more accurate than the complete rule base configuration. However, the reduced rule base also generated more conflicts in particular settings. Among all the fuzzy inference settings used in this research, one of the settings outperformed the others. With regard to the particular inference methods, the research show that maximum is the preferred aggregation method while middle of maximum is the preferred defuzzification method.

  • 76.
    Hilletofth, Per
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Department of Industrial Engineering and Management, University of Gävle, Sweden.
    Sequeira, Movin
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Adlemo, Anders
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Three novel fuzzy logic concepts applied to reshoring decision-making2019In: Expert systems with applications, ISSN 0957-4174, E-ISSN 1873-6793, Vol. 126, p. 133-143Article in journal (Refereed)
    Abstract [en]

    This paper investigates the possibility of increasing the interpretability of fuzzy rules and reducing the complexity when designing fuzzy rules. To achieve this, three novel fuzzy logic concepts (i.e., relative linguistic labels, high-level rules and linguistic variable weights) were conceived and implemented in a fuzzy logic system for reshoring decision-making. The introduced concepts increase the interpretability of fuzzy rules and reduce the complexity when designing fuzzy rules while still providing accurate results.

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  • 77.
    Hilletofth, Per
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design. Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Sequeira, Movin
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Tate, W.
    Feasibility of fuzzy logic in reshoring decision makingManuscript (preprint) (Other academic)
  • 78.
    Hong, Emelie
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. 1995.
    Developing Action Plan for Inventory Management: A case study within Small Medium Enterprise2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 79.
    Hussein, Zuhal
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Rönnlund, Hanna
    Jönköping University, School of Engineering.
    Effektivisering av avvikelsehantering: En fallstudie om avvikelsehantering i ett producerande företag2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of the study is to investigate how a deviation process can be streamlined and integrated into a manufacturing company’s daily work. Two questions have been created to answer the purpose:

    • How should defective products be handled effectively?
    • How can the deviation process become a natural part of the daily work?

     

    Method – The study is formed as a single case study from the case company’s problem. Different methods for data collection have been used, such as; literature review, interviews, observations, document studies and a comparison to another manufacturing company. An understanding of the problem area has been reached through the literature review. Five people with different work roles at the case company were interviewed with the aim to understand the communication picture, obtain a complete image of the daily work and its challenges. Observation has been performed on two occasions, in order to gain insight into the work steps covered by the deviation management. Document studies have been used to create empirical data. Finally, a comparison with another producing company has been drawn out with the intention of gaining insight into how the deviation management is designed in another company.

     

    Findings – In order to achieve a more efficient handling of deviations at the case company, three main problems have been identified. The first problem is communication, which includes the lack of a common reporting system, resource shortage, communication between management and employees, as well as between departments. The communication can be improved by implementing a new reporting system, assign an extra employee for the deviation handling and through an increased understanding from the management about the employee’s needs. The second problem is standardized work that deals with the lack of a common working method and work steps for handling deviations. A standardized working method in which both defects and misunderstandings are reduced can be achieved through a systematically designed storage shelf and a new flow chart, which has been developed. The third problem is education that involves difficulties in assessing and reporting defective material. In order to reduce uncertainty about the assessment and reporting of defects in production and to release time for other departments, increased training for employees is required.

     

    Implications – The study has drawn attention to a lack of existing theory regarding deviation management. It has been noted that the root cause of the problem is due to more reasons than assumed from the beginning and thus new knowledge has been developed. Companies with similar problems as the case company can apply some of the study's suggestions for action.

     

    Limitations – The limitations that are found in the study include confidentiality where the case company has chosen not to be named by the company name and not to disclose certain information. Since the study is a single case study, the generalisability is limited to a certain extent.

     

    Keywords – Internal deviation handling, Deviation handling, Defects, Waste, Standardized work, Reporting system, Communication.

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  • 80.
    Huynh, Leslie
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Roos, Julius
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Power Asymmetry's Influence on Supplier On-Time Delivery Performance: A Case Company at Telia Company2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose with the study is to get an understanding of how a low-power retailer can incentivize their high-power supplier(s) to improve their supplier on-time delivery performance. The purpose was fulfilled by answering the two research questions:

    1. How does power asymmetry influence supplier on-time delivery performance in a low-power retailer and high-power supplier context?

    2. How can low-power retailers work with high-power suppliers to increase their supplier on-time delivery performance?

    Method – To answer the research questions, both theoretical and empirical data was required. A literature study was conducted to gather relevant theories about on-time delivery performance and supplier relations. To get the required empirical data, a case study was conducted at a case company that suited the subject. The case study consisted of multiple interviews and document studies. This enabled for an analysis in the form of pattern matching in order to answer the research questions and thereby fulfill the purpose.

    Findings – The power asymmetry between a supplier and a retailer influences the supplier on-time delivery performance in several ways. The low-power retailer can experience difficulties with setting the demands they need. Having to deal with high-power suppliers while being a low-power retailer has its challenges when a satisfying level of supplier on-time delivery performance is needed. The study found four appropriate ways for low-power retailers to work with high-power suppliers to get improved supplier on-time delivery performance. Improvement and changes can be done, these could be major and minor, internal and external.

    Implications – Both practical and theoretical implications have been provided. The practical implications are that the low-power retailer needs to know their power position in the dyadic relation and act accordingly to enable for a satisfying level of supplier on-time delivery performance.The theoretical implications are that this study has filled a knowledge gap regarding improvement of supplier on-time delivery performance. The knowledge gap would be the power asymmetry subject from a low-power retailers’ perspective. Not much attention has been devoted into this subject.Limitations – The limitation with this study was conducting a case study. The results are limited to this type of telecommunication retailing company. The case study was the choice of method as it gave a deeper understanding for the subject.

    Keywords – On-time delivery performance, supplier relations, power asymmetry, dyadic relationships

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  • 81.
    Høgevold, Nils M.
    et al.
    Department of Marketing, Kristiania University College, Oslo, Norway.
    Svensson, Göran
    Kristiania University College, Oslo, Norway.
    Rodriguez, Rocío
    Kristiania University College, Oslo, Norway.
    Eriksson, David
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Relative importance and priority of TBL elements on the corporate performance2019In: Management of environmental quality, ISSN 1477-7835, E-ISSN 1758-6119, Vol. 30, no 3, p. 609-623Article in journal (Refereed)
    Abstract [en]

    Purpose: The purpose of this paper is to examine to what extent that a selection of economic, social and environmental factors is taken into corporate consideration (importance and priority) the longitudinal aspects of sustainable business practices.

    Design/methodology/approach: This study is based on an inductive approach taking into account the longitudinal aspects and an in-depth case study of a Scandinavian manufacturer recognized for its initiatives and achievements of sustainable business practices.

    Findings: The key informants indicated that economic factors are always important when it comes to sustainable business practices, social factors are to some extent important, and the environmental factors are generally important.

    Research limitations/implications: The planning, implementation and follow-up of sustainable business practices and related efforts require a consideration of economic, social and environmental factors.

    Practical implications: The framework of a triple bottom line (TBL) dominant logic for business sustainability applied may guide the corporate assessment to plan, implement and follow-up the importance and priority of the longitudinal aspects of sustainable business practices.

    Originality/value: A TBL dominant logic for sustainable business practices adequately frames corporate efforts regarding importance and priority making a relevant contribution addressing the longitudinal aspects to complement existing theory and previous studies. 

  • 82.
    Inthimat, Namjai
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    An improvement model developed for Industry 4.0: A case study2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose-The purpose of this research is to develop a future 4.0 improvement model, which improves work efficiently and effectively in a manufacturing company and in line with Industry 4.0. To achieve this purpose. Three research questions (RQ) of the issue will be answered:

    RQ1: What defines a traditional improvement model?

    RQ2: What tools shall be implemented to the 4.o improvement model?

    RQ3: How can an efficient and effective improvement model be designed for Industry 4.0?

     

    Method - Qualitative interviews, literature reviews and document study were conducted to gather data. Interviews were structured in two different categories and participants were divided into two different groups in order to gain information from different perspectives. The study involved one main case company and case in seven other companies which are customer to the main company. Employees from different roles participated in the interviews gave different opinions concerning improvement work, and from reviewing the literature and studying document received from the case company, the authors could identify what tools could make a model suit for Industry 4.0.

     

     

    Findings - Thenew model (4.0 improvement model) is inspiring from the traditional model PDCA, which most companies in this study has been using, recognizing and it is the most mentioned model in literatures. The new model includes six steps: specify, evaluate before, laboratory, implement, evaluate after and follow up. Tools added in the model work as a guideline to help the company to achieve every step. The new tools that were identified and would suit Industry 4.0 is 3D- scanning, 3D- layout, virtualization, VR and cloud-based solutions.

     

    Delimitations - Companies engaged in the study are customer companies to the case company. It would be appreciated to conduct companies which did not use the case company’ service to gain more perspectives regarding improvement work and Industry 4.0. The study focuses mostly on the improvement process in the production department. Therefore, the model created is suitable only for improving the process of production. 

     

    Further Research - More companies shall have participated in the interviews in order to develop the model, and the developing model shall also have tested afterwards. Furthermore, there are some factors which need to be in consideration, such as time limitations and the type of company participated in the study. 

  • 83.
    Jafari, Hamid
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    E-Commerce Logistics - Contemporary Literature2018In: IEEE International Conference on Industrial Engineering and Engineering Management, IEEE, 2018, p. 1196-1200Conference paper (Refereed)
    Abstract [en]

    This manuscript provides a general review of the contemporary literature on e-commerce logistics. The review is carried out systematically on the articles published in academic journals from 2015 up to 2018. A total of 77 manuscripts were reviewed and analyzed using this method regarding the journals, level of analysis, and scientific methods used. Moreover, coding of the findings of the papers was carried out to identify the research themes in contemporary e-commerce logistics literature. As a result, six themes were identified; namely, Distribution, Channel Design, Sustainability, Performance, Pricing, and Innovation. The results show a shift of scholarly focus over the past years. 

  • 84.
    Jernström, Emma
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Petersson, Jenny
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Effektivisering av returflöde: En fallstudie med fokus på produkter med kort livscykel2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of this thesis is to identify improvements in a returns flow for products with a short life cycle. Three research questions has been formulated in order to enhance the return flow: 1. How is the returns flow process built for products with short life cycle? 2. What are the challenges in the returns flow? 3. How can the returns process be improved? Method – In conversation with the case company and during the writers literature study a problem area was discovered. This established a foundation for the purpose and research questions. The study was performed as a case study which included observations and an interview. A case study was considered as the most appropriate method for this study since the writers aimed to gather profound knowledge within the subject. A theoretical framework was built upon the literature study to help the writers create an understanding of the returns flow and its challenges. Findings – To be able to identify possible improvements the study integrated data and theory. Recommendations based on this study is to introduce the function of gatekeeping in a returns flow, which contributes to a create a greater value in the returns flow. The analytical framework can help companies to implement better structures for their returns flow and the writers can also recommend to follow one standard which enables a more efficient return flow. Implications – The theory argue that the knowledge is lacking on how to manage a return flow, this is confirmed with the gathered data where the return flow is not designed to create efficiency. To tackle this issue, the writers choose to intertwine two returns flow theories together with a lean perspective. With the integration of these theories, this new viewpoint had the expectation to achieve a more optimal returns flow. This would also give the possibility to find the value creating processes within the returns flow and help to extract as much as possible of the product life cycle. Limitations – The study is limited to a case study, this entails that the credibility and the generalization is low. This is a disadvantage, but this study can be seen as a starting point and therefore the case study is the most suitable. The theoretical framework that is presented in the study also needs practical verification to earn credibility. 

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  • 85.
    Johansson, Hedda
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Implementering av värdeflödesanalys inom processindustrin: En nulägeskartläggning av en produktfamiljs flöde i syfte att effektivisera flödet genom eliminering av icke-värdeskapande aktiviteter samt slöserier2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of the study is to investigate how value stream mapping can be used to achieve a more efficient flow for a product family in the process industry. In order to achieve the purpose, three research questions have been formulated:

    1. How can a current flow be mapped in the process industry through value stream mapping?

    2. What types of non-value-added activities and waste can be identified through value stream mapping?

    3. How can a desired future flow be developed in the process industry through value stream mapping and what Lean tools can be used for improvement to achieve the desired flow?

    Method – To answer the research questions developed, a qualitative study with an inductive approach has been executed. Firstly, a pilot study was conducted to create a broader picture of the subject and the problem area. A literature review was then carried out with the aim of identifying previous knowledge and research within the field. Thereafter, empirical data was gathered through a case study including the methods of interviews, observations and documentary studies. Lastly, the theory and data collected for the purpose of the study have been analyzed through pattern matching and generated in the following results.

    Findings – The study conducted indicates that value stream mapping can be used within the process industry to achieve a more efficient flow for a product family. The research conducted shows that value stream mapping in the process industry distinguished from the discrete industry. The value stream mapping developed within the study enabled the identifying of non- value-added activities and waste in the flow of the product family. Through the identified deficiencies a desired future flow has been developed with decreased deficiencies. The desired future flow has contributed to improved suggestions of what Lean tools to be used to decrease deficiencies. The value stream mapping developed in the study shows that a product family’s lead time can be reduced which decreases the customer delivery time.

    Implications – Previous research shows that the method of value stream mapping is a universally phenomenon within the process industry, albeit future research is recommended to strengthen the implementation of the method. The results of the study indicate how the implementation of value stream mapping can be applied and through valuable result strengthen the theory of employing value stream mapping within the process industry. The value stream mapping analysis conducted in the study can work as an underlying foundation for other organizations when optimizing a product flow. Organizations within the process industry can apply the presented Lean tools when identifying similar non-value-added activities and waste.

    Limitations – The value mapping analysis has been adopted to the circumstances of the case study company. The results of the research can therefore be biased which restricts the generalizing towards companies with similar prerequisites. Another limitation with the study includes the simple case study of one unit of analysis, which could have been viewed from a broader perspective if more cases and units of analysis would have been implemented. This would have contributed to more generalized results.

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    Implementering av värdeflödesanalys inom processindustrin
  • 86.
    Jugend, Daniel
    et al.
    São Paulo State University, Brazil.
    De Araujo, Tiago Ribeiro
    São Paulo State University, Brazil.
    Pimenta, Márcio Lopes
    Federal University of Uberlândia, Uberlândia, Brazil.
    Gobbo Jr, José Alcides
    São Paulo State University, Brazil.
    Hilletofth, Per
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. University of Gävle, Sweden.
    The role of cross-functional integration in new product development: Differences between incremental and radical innovation projects2018In: Innovation: Organization & Management, ISSN 1447-9338, Vol. 20, no 1, p. 42-60Article in journal (Refereed)
    Abstract [en]

    The literature on new product development (NPD) contains several studies of management practices involved in different types of innovation. However, few studies focus on how cross-functional integration affects incremental and radical innovation product projects. The purpose of this study is to explore this aspect, from a qualitative perspective, through case studies of four high-tech firms in Brazil. Eight NPD projects were studied. The findings suggest that radical and incremental innovation NPD projects require different management practices in the studied cases. In incremental NPD projects, greater integration efforts may not be necessary. However, the following practices should be adopted in projects involving radical innovation product projects: intense involvement of technical teams, flexibility in the early stages of NPD, and geographical separation between the development team and other departments of the firm. Moreover, the application of these same practices in projects of incremental innovation in NPD may not bring positive results.

  • 87.
    Kaneberg, Elvira Ruiz
    et al.
    Jönköping University, Jönköping International Business School, JIBS, Business Administration.
    Hertz, Susanne
    Jönköping University, Jönköping International Business School, JIBS, Business Administration.
    Jensen, Leif-Magnus
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Voluntary defense networks in emergency preparedness in developed countries: the case of Sweden [Redes de defensa voluntarias en preparación ante emergencias en países desarrollados: el caso de Suecia]2019In: Revista Científica General José María Córdova, ISSN 1900-6586, Vol. 17, no 26, p. 229-250Article in journal (Refereed)
    Abstract [en]

    Voluntary networks are actors in civil society and central to the emergency preparedness efficiency of developed countries’. This study focuses on the voluntary defense networks in Sweden, a unique set of networks that contribute to the efficiency of emergency preparedness. Through interviews with experts in Swedish civil and military fields and their associated voluntary defense networks, as well as secondary data, we examined the coordination of these voluntary defense networks in practice. Although voluntary network coordination is highly associated with efficiency, in practice, most voluntary networks are not well coordinated. This study confirms that civil and military practitioners in developed countries, struggling with the coordination of voluntary networks are not isolated in their struggle; inattentive practices are indeed the norm. This article also establishes a course that civil and military practitioners can follow to improve emergency response efficiency.

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  • 88.
    Karltun, Anette
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Karltun, Johan
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Benefits of the Human-Technology-Organization Concept in Teaching Ergonomics – Students Perspective2018In: Advances in Intelligent Systems and Computing / [ed] Sebastiano Bagnara, Riccardo Tartaglia, Sara Albolino, Thomas Alexander, Yushi Fujita, Springer, 2018, Vol. 821, p. 627-636Conference paper (Refereed)
    Abstract [en]

    The human-technology-organization (HTO) concept has been used for creating systems understanding of ergonomics in three engineering educations at the School of Engineering in Jönköping. Students from courses given in two undergraduate and one graduate program (n = 122) participated in the study, which involved a course evaluation questionnaire to assess the understanding of ergonomics as discipline and HTO as a means for creating systems understanding. The questionnaire included both ranking and personal comments to the questions. The results show that the students in general considered knowledge of ergonomics and HTO as beneficial for their future work and that the HTO concept did contribute to their understanding of workplace ergonomics. However, there was a significant difference between undergraduate and graduate students in all these aspects where undergraduates ranked all these aspects lower than graduates. This was also reflected in personal comments on the questions. Conclusions that can be drawn are that understanding systems is generally difficult and the HTO concept can assist in helping students to overcome these difficulties. However, the differences between the student groups must be explicitly considered as well as increasing students’ awareness of the relevance of ergonomics for engineers. 

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  • 89.
    Karltun, Anette
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Jönköping University, School of Health and Welfare, The Jönköping Academy for Improvement of Health and Welfare.
    Sanne, Johan M.
    Jönköping University, School of Health and Welfare, The Jönköping Academy for Improvement of Health and Welfare. IVL Swedish Environmental research Institute, Sweden.
    Aase, Karina
    SHARE – Centre for Resilience in Healthcare, Faculty of Health Sciences, University of Stavanger, Norway.
    Anderson, Janet E.
    Florence Nightingale Faculty of Nursing, Midwifery and Palliative Care, King’s College London.
    Fernandes, Alexandra
    ISCTE, Lisbon University Institute, Portugal.
    Fulop, Naomi J.
    Department of Applied Health Research, University College London.
    Höglund, Per J.
    Jönköping University, School of Health and Welfare, The Jönköping Academy for Improvement of Health and Welfare.
    Andersson-Gäre, Boel
    Jönköping University, School of Health and Welfare, The Jönköping Academy for Improvement of Health and Welfare. Jönköping University, School of Health and Welfare, HHJ. IMPROVE (Improvement, innovation, and leadership in health and welfare). Futurum, Region Jönköping County, Jönköping, Sweden.
    Knowledge management infrastructure to support quality improvement: A qualitative study of maternity services in four European hospitals2020In: Health Policy, ISSN 0168-8510, E-ISSN 1872-6054, Vol. 124, no 2, p. 205-215Article in journal (Refereed)
    Abstract [en]

    The influence of multilevel healthcare system interactions on clinical quality improvement (QI) is still largely unexplored. Through the lens of knowledge management (KM) theory, this study explores how hospital managers can enhance the conditions for clinical QI given the specific multilevel and professional interactions in various healthcare systems.

    The research used an in-depth multilevel analysis in maternity departments in four purposively sampled European hospitals (Portugal, England, Norway and Sweden). The study combines analysis of macro-level policy documents and regulations with semi-structured interviews (96) and non-participant observations (193 hours) of hospital and clinical managers and clinical staff in maternity departments.

    There are four main conclusions: First, the unique multilevel configuration of national healthcare policy, hospital management and clinical professionals influence the development of clinical QI efforts. Second, these different configurations provide various and often insufficient support and guidance which affect professionals’ action strategies in QI efforts. Third, hospital managers’ opportunities and capabilities for developing a consistent KM infrastructure with reinforcing enabling conditions which merge national policies and guidelines with clinical reality is crucial for clinical QI. Fourth, understanding these interrelationships provides an opportunity for improvement of the KM infrastructure for hospital managers through tailored interventions.

  • 90.
    Karltun, Johan
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Karltun, Anette
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Havemose, Karin
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Kjellström, Sofia
    Jönköping University, School of Health and Welfare, The Jönköping Academy for Improvement of Health and Welfare. Jönköping University, School of Health and Welfare, HHJ. IMPROVE (Improvement, innovation, and leadership in health and welfare).
    Positioning the study of first line managers’ resilient action strategies2019In: 8th REA Symposium on Resilience Engineering: Scaling up and Speeding up: Proceedings, 2019Conference paper (Refereed)
    Abstract [en]

    This paper introduces a study on the action strategies of first line managers (FLMs) using a resilience perspective and the aim is to position the study in the theoretical field of resilience management and engineering. One important key to an organization's long-term competitiveness are the first line managers’ ability to handle the role as a leader in daily work. In the role of a FLM, there are a lot of conflicting objectives to manage, for example, regarding available resources, subordinates’ views versus superiors’, centralized and/or local control, optimization of cost and capability (quality and delivery). Moreover, at the operational level of detail, FLMs have to balance daily deliveries in relation to development activities, i.e. technical development, product development, implementation of new system and management concepts. Regardless of the complexity in work and organisational change over time, a FLM’s most important task is to contribute to a high and stable production output out of an input that is characterized by variability and disturbances. To do so in a sustainable way, the FLMs must develop action strategies about ways of working and problem solving that systematically facilitate coping with the situation and managing their own workload. We consider this as developing resilient actions strategies that allow the FLMs to handle the upcoming problems without getting problems on their own. In this paper we describe and develop the theoretical underpinnings of the study as well as how we position our own research in relation to the different theoretical strands of resilience management. We further suggest some methodological ideas on how to capture the work and nature of first line managers’ resilient action strategies. The focus in our work will thus be on how FLMs handle and can improve the more or less chaotic mix of activities in daily work in a resilient way.

  • 91.
    Käkelä, Nikolas
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Customization-based interaction in ETO2019Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Customization is an important way for suppliers to offer value to customers and to be competitive. There is a variety of methods suppliers can adopt to offer customization. What they have in common is that some form of interaction between customer and supplier is required as customization is based on involving individual customers in specifying a solution to be produced. This can be achieved, for example, by allowing the customer to choose from components or values that have been defined in advance, later to be assembled or put together according to the customer's wishes. As the possibilities for customization are clearly defined in advance, the supplier can rationalize their procedure to capture customer needs and propose an appropriate solution. This differs from cases where the customer is already involved in the development, design, or engineering stage ± so-called engineer-to-order (ETO) scenarios. Here, the customer is not bound to predefined possibilities for customization, which means that the interaction required to define the solution can extend beyond that required when customization possibilities are predefined and thus limited. In this thesis, customization-based interaction in ETO is investigated, both with the intention of improving the understanding of interaction in this context as such but also to offer ways of explaining how some approaches to customization have implications for interaction that differ from others. The result of the research consists of an account of how interaction is manifested in ETO and how different approaches to customization can be understood to clarify their implications for how solutions are defined.

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  • 92.
    Käkelä, Nikolas
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Wikner, Joakim
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Defining solution spaces for customizations2018In: Advances in Production Management Systems. Production Management for Data-Driven, Intelligent, Collaborative, and Sustainable Manufacturing. APMS 2018 / [ed] Ilkyeong Moon, Gyu M. Lee, Jinwoo Park, Dimitris Kiritsis, Gregor von Cieminski, Cham: Springer, 2018, Vol. 535, p. 95-100Conference paper (Refereed)
    Abstract [en]

    Customization in different flavors have been identified as an important differentiator if low-cost competitiveness is not viable. To provide a customer unique solution is however not the same as providing a solution that is designed and individualized for a particular delivery to a customer. These two cases are illustrations of how customer requirements may be fulfilled differently depending on the match between stated requirements and the solution offered. The range of solutions that can be offered is represented by a solution space consisting of either predefined or postdefined solutions. Predefined refers to solutions that are defined before commitment to a customer and postdefined refers to solutions that are defined after commitment to a customer. Both cases are constrained by a boundary of possible solutions but the postdefined solutions provide opportunities for bounded innovation beyond what the predefined solutions can provide. Combining the properties of the different solution spaces provides not only an operational definition of customization but also supports in identifying strategic opportunities for extending the solutions and types of customizations a business provides. 

  • 93.
    Larsson, Philip
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Sörman, Noah
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Multiklassificering av reservdelar: En fallstudie om anskaffningsstrategi och lagerstyrning2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte – Syftet med studien är ”…att undersöka hur anskaffning av reservdelar kan effektiviseras, utifrån multipla klassificeringsaspekter”. För att besvara syftet har tre frågeställningar formulerats: 1. Vilka aspekter är viktiga vid anskaffning av reservdelar? 2. Hur kan reservdelar klassificeras utifrån aspekterna? 3. Vilka anskaffningsstrategier kan tillämpas på de olika kategorierna av reservdelar? Metod – Studien utfördes som en fallstudie där målet var att studera ett fallföretags processer i deras naturliga sammanhang. Studiens data insamlades via en dokumentstudie samt tre intervjuer med administrativ personal vilket användes tillsammans med tidigare akademisk litteratur. Resultat – Både tidigare teori och insamlad empiriska data pekade på fyra aspekter att beakta vid anskaffning av reservdelar; kriticitet, ledtid, efterfrågan och kostnad. Reservdelarna kunde utefter de fyra beskrivna aspekterna separat tilldelas en klassificering, där flera metoder kombineras till en multiklassificering-modell. Efter klassificering möjliggjordes utformningen av olika anskaffningsstrategier med lämpliga lagerpolicyers, partiformningsmetoder, orderpunkter och övervakningsmetoder för diverse kategori, för att effektivisera lagerstyrningen. Implikationer – Studiens resultat visar en möjlig kombination för att utföra en multiklassificering baserad på kriticitet, ledtid, efterfrågan och kostnad. En sådan klassificering kan hjälpa företag som är starkt beroende av reservdelar att veta vilka reservdelar som mest fokus bör läggas på i anskaffningen. Begränsningar – Studien innefattade enbart ett företag vilket reducerar dess generaliserbarhet. Fallföretaget var dessutom I underhållsbranschen vilket medförde att reservdelar användes till att underhålla kunders produkter och inte egen utrustning.

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  • 94.
    Lee, Tzong-Ru
    et al.
    National Chung Hsing University, Taichung, Taiwan.
    Sinnarong, Nirote
    Department of Applied Economics, Maejo University, Chiang Mai, Thailand.
    Hsu, Yi-Hsiang
    College of Social Science and Management, National Chung Hsing University, Taichung, Taiwan.
    Lan, Hsiang-Ying
    National Chung Hsing University, Taichung, Taiwan.
    Yeh, Ching-Hua
    Rheinische Friedrich-Wilhelms-Universitat Bonn, Bonn, Germany.
    Hilletofth, Per
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    The sequence of strategies when establishing Taiwanese restaurant in Thailand2020In: European Business Review, ISSN 0955-534X, E-ISSN 1758-7107Article in journal (Refereed)
    Abstract [en]

    Purpose: The purpose of this paper is to investigate the problem faced by many Taiwanese restaurant owners who trying to set up their shops in Thailand.

    Design/methodology/approach: Two surveys were conducted in this study. The first interview questionnaire was designed using the factors proposed by Parasuraman et al. (1988, 1991) and given to restaurant owners/managers who successfully set up shops in Thailand. The second questionnaire was constructed specifically for Thai consumers.

    Findings: Gray relational analysis (GRA), theory of inventive problem-solving (teoriya resheniya izobreatatelskikh zadatch, TRIZ) and interpretive structural model (ISM) were used to identify potential difficulties and to determine the key factors impacting the shop establishment and development in Thailand. The results provide a set of strategic sequence when launching restaurant in Thailand.

    Originality/value: A result of GRA determined 14 important factors that influence customer perception of quality service. A TRIZ analytic process provided 17 strategies when setting up overseas shop and the ISM class diagram shown the three phases needed to be considered before restaurant owners can set up shops abroad. The three phases are construction, operation and competition phases. These set of strategies sequence when launching a restaurant in Thailand. 

  • 95.
    Leed, Mathilde
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Connman, Maja
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Effektivisering av materialflöde via lagerlayout: En fallstudie på ett mindre underhållsföretag2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose - The purpose of this study is to evaluate the non value creation which can occur within smaller maintenance companies’ warehouses. Utilizing a status analysis potential solutions as well as deficiencies will be found. Two issues have been created to answer the purpose; they are.

    1. Which parameters are vital for a well-functioning warehouse connected to smaller maintenance companies’?

     

    1. What aspects are important to take into consideration for restructuring of a warehouse layout for smaller maintenance companies’?

    Method – A pre-study was conducted at the case company, a smaller maintenance company for vehicles, to create a greater understanding of the company's problem area. In order to answer the two issues due to the purpose of this study, a case study was conducted. The case study consisted of a literature study, an interview, an observation and a document study. Six interviews were conducted with seven respondents to study the case companies current and preferred state. Two observations were conducted, of which one is the basis for a spaghetti-diagram the other was used to ascertain the collected data coincided with reality.

    Results – The choice of strategies and principles is of significance for a well-functioning storage, a combination of multiple principles is preferred also for smaller maintenance warehouse set storage location is preferable since it enables a well-known storage layout for the coworkers. This in turn creates non value creation activities can be reduced. This, in combination with classifying articles in the shape of an ABC-analysis, family groups, modern storage layout, popularity and similarities etc. Furthermore, a correct removal of articles is essential for a well-functioning storage. Utilizing a company's work power can result in non value creation activities being reduced or be used more efficiently, this being one issue for the case company.

    There are multiple aspects to consider during restructuring of a storage layout. Knowledge of the product which is being stored and what will potentially be stored is essential for the company. By identifying articles, the company will be able to create a new storage layout. A maintenance company should to execute an ABC-analysis and a Kraljics matris to create an overview of what is being stored. When choosing storage methods, strategies and principles are complimentary to each other and the company's internal functions. For smaller maintenance companies’ storage has restrictions regarding storage space which in turn necessities thorough survey of articles.

    Implications – The case study is based upon well-known theories within the subject of logistics and warehousing. New theories are not presented in the study; the authors however consider finding a lack of how the existing theories can be linked to warehousing operations for a maintenance company. The conducted study can be replicated in terms of work, however, the chosen strategies and principles are selected specifically according to the circumstances of the case company. Whit theory as a pillar it has justified why the material flow is not optimal and which theories are considered to be compatible with the case company.

    Limitations – The study was conducted as a one-case study. If the study had instead involved more companies, it had resulted in a multiple-case study which had generated in increased generalizability in the case study. The case study is limited to the internal material flow on the case companies warehouse. A larger number of interviews and observations could have led to increased reliability, as common deficiencies and potential solutions had resulted in greater credibility.

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  • 96.
    Lennartsson, Martin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Bäckstrand, Jenny
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Getting the most out of a collaborative research project – Cross industry design for a holistic view and increased learning2018In: Proceedings of the 34th Annual ARCOM Conference, 3-5 September 2018, Belfast, UK / [ed] C. Gorse, & C. J. Neilson, Association of Researchers in Construction Management (ARCOM), 2018, p. 526-535Conference paper (Refereed)
    Abstract [en]

    Lately, collaborative research has gained recognition. The balance between scientific rigour and practical relevance is a continuing issue within construction management research. The purpose of this paper it to describe a cross-industry and cross disciplinary approach to co-creation of knowledge through a collaborative research approach. A collaborative research project on the topic communication regarding customer specific demands is presented using a model with two interacting cycles for knowledge creation. Two construction companies, a housing company with off-site manufacturing and a small subcontractor manufacturing street doors and front doors, are participating. Four other companies within mechanical manufacture, telecom and consultancy are involved. To engage the companies, the project emphasizes activities not adding any contribution to academic production. Networking, industrial education, publications in trade journals, participation in trade fairs etc. might be essential to convince the industry of the practical relevance. The findings prove that applied research does not need to be isolated to specific industries or disciplines, as the collected data are applicable to the different participating companies' despite of their differences. 

  • 97.
    Liljegren, Filip
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Lövstedt, Marcus
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Utveckling av metoder för utlastningsytor: En analys för hur utlastningsytor kan standardiseras och effektiviseras2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of this study has been to analyse how activities on loading spaces can be standardized and more effective. The following two questions have been chosen to answer the purpose of the study.

    1. Which activities are currently being performed in a disadvantageous manner on loading spaces?

    2. Which improvements can be made to enable optimization on loading spaces?

    Method – A pilot study was conducted at a fall company to identify the purpose to the study and its research questions. The case study was conducted in the form of a onecase design since case study was conducted at only one company. The case study consisted of observations, interviews and document studies. In order to design a theoretical framework as a theoretical basis of the study, a literature review was made. The literature review gave a background to theories in Lean, 5S, Standardized work, Muscle memory, ABC analysis, Poka-Yoke, Warehouse layout and Process mapping.

    Findings – The study presents several activities that are performed in a disadvantageous way. Examples of these activities are variation in placement of sorting codes, inbound goods or consumables on the loading space and plural wastes connected to a scanning process. An ABC analysis of sorting codes, implementation of 5S and standardized work together with has led to a finding who shows the correlation between the abovementioned methods and how it leads to a standardized and effective work on the loading space.

    Implications – Based on an existing problem, the study has been based on previously known theories and methods in the areas of inventory and logistics. The study do not present any new theory in these areas but shows the correlations between different methods to standardize and make loading spaces more effective. The correlation between the methods has led to a standardized work process and guideline for how a loading space can be designed which is a relatively unexplored area.

    Limitations – The study was conducted at a fall company based on their problems at the loading space. A benchmarking within a similar business could increase the understanding of the problems at loading spaces and thus increase generalization further. In the document study have some statistics concerning sorting codes been unspecified, which may have affected the ABC classification. Further does the study only cover activities on the loading space. Activities earlier in the flow have not been taken into consideration which could lead to more solutions to the purpose of the study.

    Keywords – Loading space, 5S, Standardized work, ABC classification, Wastes, Sorting code, Pallets, Visual aids, Scanning

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  • 98.
    Lima, T. M.
    et al.
    Centre for Mechanical and Aerospace Science and Technologies (C-MAST), Department of Electromechanical Engineering, Faculty of Engineering, University of Beira Interior, Calçada Fonte do Lameiro, Covilhã, Portugal.
    Coelho, Denis A.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Centre for Mechanical and Aerospace Science and Technologies (C-MAST), Department of Electromechanical Engineering, Faculty of Engineering, University of Beira Interior, Calçada Fonte do Lameiro, Covilhã, Portugal.
    A participatory ergonomics approach to prevention of musculoskeletal disorders in Portuguese small and medium enterprises: Ergo@Office2019In: International Journal of Human Factors and Ergonomics, ISSN 2045-7804, E-ISSN 2045-7812, Vol. 6, no 3, p. 273-295Article in journal (Refereed)
    Abstract [en]

    A participatory ergonomics program enables a company to engage employees in its preventive strategy. This paper presents Ergo@Office, an integrated methodology devised for promoting continuous implementation of preventive measures while monitoring their effectiveness over time in a participatory manner. It consists of a straightforward and cost-effective resource which is primarily aimed at supporting the identification of the need for implementation of interventions for strategic prevention of musculoskeletal disorders. As a practitioner tool, Ergo@Office guides the deployment of a participatory approach to ergonomics in both the analysis as well as in the intervention phase. The implementation of the measures envisaged in this planning support framework result from teamwork between the OSHS (Occupational Health and Safety Services) and the employee whose work is under focus. The implemented measures should then be monitored, which will enable assessing their effectiveness and their adjustment to the labour setting in an up-to-date manner. 

  • 99.
    Lindberg, Malin
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Hoffman, William
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Effektivisering av reningsverk: En studie om hur resursanvändningen i reningsverk kan effektiviseras2019Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of the study was "To map out how resource use in treatment plants can be made more efficient" in companies with treatment plants as a support process. To answer the aim of the study, two research questions have been established: "How can treatment plants be systematically mapped out?" and "How can resource use be made more efficient?".

    Method: A case study was conducted to get a holistic perspective and to collect as comprehensive information as possible. The data collection methods used in the study were: observation, interview, document studies and literature studies.

    Findings: Through theory and empirical data, an analysis was made to be able to answer the study's purpose and research questions. The result showed that Lean could be used to map treatment plants. Furthermore, factors that affect the efficiency of resource use have been identified. These factors consisted of the treatment plant flow, equipment, capacity, layout, technology, degree of standardization and manual handling.

    Theoretical contribution: The study's theoretical contribution is that Lean philosophy, with its tools and methods, can be used to map and study the flow in treatment plants. Factors for how resource use can be made more efficient have also been identified.

    Empirical contribution: A flow chart of the treatment plant process has been established and a spaghetti diagram was made for how the employee who works in the treatment plant moves to perform his or her duties. Further has information from observations, interviews, document studies and literature studies provided an understanding of the company where the treatment plant is located. Finally, a table has been compiled for which factors affect the efficiency of resource use. These factors can be of use to companies with treatment plants as support processes, but also companies with other types of support processes, when making their resource use more efficient.

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  • 100.
    Lindmark, Eric
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Jakob, Svenningsson
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Optimization of inbound value flow in a manufacturing company: A case study on the bullwhip effect2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of the research is to explore how to reduce waste in value flows and to minimize the bullwhip effect within operations. To fulfill and answer the purpose of the research three questions of issue has been established:

    1. What issues in value flows can be identified, regarding inbound and outbound flows?

    2. How can issues in value flows be minimized, with regards to inbound and outbound flows?

    3. How can a model be created to understand the relationship between value flow improvements and the bullwhip effect?

    Method – To retrieve understanding of the topic that thesis involves, support of literature studies, observations and data collection was used. The literature study created a foundation of theoretical framework. The data collected from the case company formed a base that partly facilitates the purpose of this thesis. The theoretical framework and data collection were thoroughly analyzed and discussed in order to propose solutions for improvements.

    Findings – The research establishes different issues that can be identified in outbound and inbound flows such as; waste in transportation, waste in inventory, waste in movement and waste in overproduction. Further, in order to minimize the identified issues in inbound and outbound flows it is imperative to find out the root cause for the issues. When the root cause was established, statistical approach was utilized to further explain the issue. The findings from the statistical approach elucidated a large variance between supply and demand, resulting in a bullwhip effect. In order to minimize the bullwhip effect, improvements should focus on insufficiencies such as; lack of communication, order batching and disorganization. In addition, standardization through 5s approach mitigates the waste in transportation and movement. To understand the relationship between value flow improvements and the bullwhip effect, a causal loop diagram was created to understand the phenomenon from a system perspective.

    Implications – The research contributes with solutions on how to identify the bullwhip effect as well as highlighting the issues in value flows. Furthermore, this research solidifies the importance of using lean process to improve overall productivity in value flows.

    Limitations – The research was limited to one case company and one area in the case company. The answers that are presented in this research could increase the reliability and credibility if the authors had been able to investigate several areas at the case company or several companies. Furthermore, the date that has been retrieved is based solely on one supplier at the case company.

    Keywords – ‘Lean Process’, ‘Bullwhip Effect’, ‘Supply Chain Management’, ‘Continuous Improvement’, ‘System Perspective’ and ‘Statistical Analysis’. 

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