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  • 151.
    Säfsten, Kristina
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Johansson, Glenn
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Lakemond, Nicolette
    LiTH.
    Magnusson, Thomas
    LiTH.
    Managing Interfaces in the Industrial Innovation Process2008Konferensbidrag (Övrigt vetenskapligt)
  • 152.
    Säfsten, Kristina
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Lakemond, N
    Johansson, Glenn
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Magnusson, T
    The Content and Role of Preparatory Production Activities in the Product Development to Production Interface2006Ingår i: Proceedings of the 39th CIRP International Seminar on Manufacturing Systems: the morphology of innovative maufacturing systems ; Ljubljana, June 7th - 9th, 2006 / [ed] P Butala; G Hlebanja, Ljubljana: University of Ljubljana , 2006Konferensbidrag (Övrigt vetenskapligt)
  • 153.
    Säfsten, Kristina
    et al.
    LiU, IKP.
    Winroth, Mats
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Analysis of the congruence between manufacturing strategy and production system in SMME2001Ingår i: MANUFACTURING INFORMATION SYSTEMS: Proceedings of The Fourth SMESME International Conference Stimulating Manufacturing Excellence in Small & Medium Enterprises / [ed] Hans-Henrik Hvolby, 2001, s. 95-102Konferensbidrag (Refereegranskat)
    Abstract [en]

    A production system must reflect a company’s manufacturing strategy and the chosen competitive priorities. Tools to assess the congruence between the manufacturing strategy and the production system can hence support the companies’ competitive position. In this paper, the usability of an analysis model suggested by Miltenburg (1995), aiming at mapping manufacturing strategy and production system is investigated. The usability of the analysis model is investigated in terms of the ease to use it and in terms of the obtained results. The investigation is performed by means of empirical studies in two medium sized manufacturing companies. The result is that the model seems to be useable in the senses that, if knowledge about the underlying principles in the analysis model is at hand, it is possible to investigate the congruence between manufacturing strategy and production system. It is, however, believed that the analysis model needs some further development to be considered an easy to use tool for e.g. the SMME production manager.

  • 154.
    Säfsten, Kristina
    et al.
    LiU, IKP.
    Winroth, Mats
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Analysis of the congruence between manufacturing strategy and production system in SMME2002Ingår i: Computers in industry (Print), ISSN 0166-3615, E-ISSN 1872-6194, Vol. 49, nr 1, s. 91-106Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A production system must reflect a company’s manufacturing strategy and the chosen competitive priorities. Tools to assess the congruence between the manufacturing strategy and the production system can hence support the companies’ competitive position. In this paper, the usability of an analysis model suggested by Miltenburg (1995), aiming at mapping manufacturing strategy and production system, is investigated. The usefulness of the analysis model is investigated in terms of how easy it is to use and in terms of the obtained results. The investigation is performed by means of empirical studies in two medium sized manufacturing companies. The result is that the model seems to be useful in the sense that, if knowledge about the underlying principles in the analysis model is at hand, it is possible to investigate the congruence between a manufacturing strategy and a production system. It is, however, believed that the analysis model needs some further development to be considered an easy to use tool for e.g. the SMME production manager.

  • 155.
    Säfsten, Kristina
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Winroth, Mats
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Stahre, Johan
    The content and process of automation strategies2005Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Modern manufacturing systems are often semi-automated, i.e. integrating both manual and automated op-erations. Our studies show that decisions on how, and even if, automation should be realized often are taken in an ad hoc manner. Improved efficiency in production through automation could be achieved with better precision if a more conscious approach towards automation was used. We argue that it is essential to formulate explicit automation strategies, which will provide guidance to the appropriateness of automa-tion in different situations. Further, it should give advice as to the most suitable degree of automation needed. Two different perspectives on automation strategies have been identified through a literature re-view and empirical studies. The first perspective is when decisions concerning automation are treated as one of several decisions in a manufacturing strategy. The second perspective is when the overall manufac-turing strategy is equal to an automation strategy, i.e. the strategy is automation. The paper elaborates on the content and process of automation strategies, i.e. what must be included in a strategy and how is it formulated.

  • 156.
    Säfsten, Kristina
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Winroth, Mats
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Stahre, Johan
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    The content and process of automation strategies2007Ingår i: International Journal of Production Economics, ISSN 0925-5273, E-ISSN 1873-7579, Vol. 110, nr 1-2, s. 25-38Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    If automation is to support the competitiveness for a manufacturing company, strategic as well as operational issues need consideration. To best support competitiveness, decisions concerning automation should be treated as one of several decisions in a manufacturing strategy. Furthermore, to fully utilise the advantages from automation, the manufacturing strategy content and process needs refinement. In this paper improvement of the manufacturing strategy theory is suggested, mainly based on employment of human factors engineering.

  • 157. Towill, Denis, R.
    et al.
    Naim, Mohammed, M.
    Wikner, Joakim
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Industrial Dynamics Simulation Models in the Design of Supply Chains1992Ingår i: International Journal of Physical Distribution & Logistics Management, ISSN 0960-0035, E-ISSN 1758-664X, Vol. 22, nr 5, s. 3-13Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Reviews the dynamic operation of supply chains and reaches some simple conclusions for reducing demand amplification, which consequently attenuates swings in both production rates and stock levels. The results are based on one particular supply chain, for which the use of systems simplification techniques has generated valuable insight into supply chain design. Although different strategies are compared for reducing demand amplification as witnessed by one particular supply chain model, the conclusions are nevertheless thought to have wide application and, indeed, implication. Comments in depth on the significance of the simulation results for the demand chain as a whole, and for the role of an individual business within the chain. In the first instance, supply chain integration, and in particular free exchange of information, is a prerequisite for progress. In the second case, shows that reduction in lead times throughout the supply chain via JIT is similarly beneficial. Clearly pinpoints the limitation to supply chain improvement which can be obtained as a result of using JIT alone. This can be an expensive and ongoing process of improvement with many spin-off benefits. Nevertheless, shows that the improvement possible by JIT operation of an individual business can be negated by the failure to design and manage the supply chain dynamics as a total system. The message for an individual business is thus quite specific. Not only must lead times be reduced via JIT, but also the business must seek to be part of the right supply chain, if it is to remain competitive and stable.

  • 158.
    Vogel, Kjerstin
    et al.
    Skolan för teknik och hälsa, KTH.
    Karltun, Johan
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Eklund, Jörgen
    Skolan för teknik och hälsa, KTH.
    Ergonomic changes and their consequences in a Swedish meat cutting plant2010Ingår i: Proactive Ergonomics - implementation of ergonomics in planning of jobs, tasks, systems and environments, 2010Konferensbidrag (Övrigt vetenskapligt)
  • 159.
    Wikner, Joakim
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Affärssystem och lean production: det bästa av två världar2006Ingår i: Intelligent logistik, ISSN 1653-9451, nr 5, s. 10-Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
    Abstract [en]

    De integrerade affärssystemens förmåga att hantera stora mängder data och dela information till både kunder och leverantörer över stora geografiska avstånd, ger dem en given plats om man vill få ut mesta möjliga av lean produktion.

  • 160.
    Wikner, Joakim
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Analysis of Smoothing Techniques: Application to Production-Inventory Systems2006Ingår i: Kybernetes, ISSN 0368-492X, E-ISSN 1758-7883, Vol. 35, nr 9, s. 1323-1347Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose – To provide an overview of how a number of frequently used smoothing-based forecasting techniques can be modelled for use in dynamic analysis of production-inventory systems.

    Design/methodology/approach – The smoothing techniques are modelled using transfer functions and state space representation. Basic control theory is used for analysing the dynamic properties.

    Findings – A set of expressions are derived for the smoothing techniques and dynamic properties are identified.

    Practical implications – Dynamic properties are important in many applications. It is shown that the different smoothing techniques can have very different influences on the dynamic behaviour and therefore should be considered as a factor when smoothing parameters are decided on.

    Originality/value – Dynamic behaviour of production-inventory systems can be analysed using control theory based on, e.g. transfer functions or state space models. In this paper a set of models for five common smoothing techniques are analysed and their respective dynamic properties are highlighted.

  • 161.
    Wikner, Joakim
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Continuous-Time Dynamic Modelling of Variable Lead Times2003Ingår i: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, Vol. 41, nr 12, s. 2787-2798Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Dynamic modelling of production-inventory systems usually involves lead time models since this is one of the most important aspects of these systems. Many different models are possible and this paper presents an overview and some ideas for how the models may be interpreted. Three different approaches to continuous-time dynamic modelling of variable lead times based on Control Theory are discussed. Two of the models can easily be incorporated into linear models based on the Laplace transform. The models are shown to be three instances of a generic delay model, which by careful selection of two parameters can be adapted to a wide variety of systems. Also the relation between waiting line theory concepts and the generic delay model is analysed, establishing an interpretation of the models as generating the concept of expected dynamic behaviour.

  • 162.
    Wikner, Joakim
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Dynamic Analysis of a Production-Inventory Model2005Ingår i: Kybernetes, ISSN 0368-492X, E-ISSN 1758-7883, Vol. 34, nr 6, s. 803-823Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose – A production-inventory system based on a model proposed by Axsäter is examined with the purpose of understanding the dynamic properties of the model.

    Design/methodology/approach – The information flow concept is discussed and a dynamic analysis using a system simplification approach is carried out to achieve an understanding of the dynamic behaviour of the system. Finally, the information flow is examined and analysed from a hierarchical perspective.

    Findings – The model is extended to include an order decision rule and a production unit and it is shown that the extended model has the capability to represent the dynamics of a number of different system management principles. The three different model instances of base stock, kanban and material requirements planning character are analysed.

    Originality/value – Dynamic modelling of production-inventory and supply chain models are usually analysed at an aggregate level not involving any complex relations of materials or capacities. In this paper, this line of research is merged with an approach based on multiple information channels using matrix representation and it is shown how a system simplification approach can be used for this purpose.

  • 163.
    Wikner, Joakim
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Dynamic Analysis of the Forrester Supply Chain1990Övrigt (Övrigt vetenskapligt)
    Abstract [en]

    The basic production distribution system presented by Forrester in his book "Industrial Dynamics" is analysed. Although many subsequent authors have quoted the original simulation results, especially when referring to supply chain behaviour, a complete analysis of the model has yet to be published. This dissertation fills this gap. As the starting point the Dynamo program representing the system is transformed to a block diagram representation commonly used in control theory. A general model for one echelon of the system is then devised and analysed. Simulations are used to cross check the analysis and to compare the behaviour of sub-systems based on varying degrees of simplification. This general model is then put into the context of the full system and further analysis and simulation is performed to gain a deeper understanding for the dynamics than is obtained from the Forrester results alone. Five different approaches are then used to improve the system.

    - Tuning the policy parameters.

    - Reduction of delays in the system.

    - Removal of the distributor echelon.

    - Improvement of the decision rules.

    - Improvement via better use of information in the system.

    Finally two or more of these alternative approaches are combined to find a new design that behaves better than the original Forrester model.

  • 164.
    Wikner, Joakim
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Dynamic Modelling and Analysis of Information Flows in Production-Inventory and Supply Chain Systems1994Doktorsavhandling, monografi (Övrigt vetenskapligt)
    Abstract [en]

    System dynamics is the fundamental concept of this academic dissertation. The focus is on analysis and modelling of properties representative for production-inventory and supply chain systems. The modelling approach is based on Industrial Dynamics but employs a hybrid approach of Control Theory and simulation in the analysis. Simplification based on a structural approach is performed on block diagrams of complex systems as a prerequisite of analysis.

    In general, there are three main activities of interest when modelling manufacturing systems from a system dynamics point of view. Thus forecasting, lead times and inventory replenishment rules are each analysed and the properties of the suggested models discussed. Analogies between delays and density functions are identified introducing the concept of expected dynamic behaviour. Inventory replenishment rules based on inventory position enables a decomposition of production-inventory systems, thus simplifying the inclusion of trigger decision rule models. A production-inventory system and the Forrester supply chain are analysed based on a system simplification approach. It is shown that the amplification of demand fluctuations of the original Forrester model is not due to the much quoted feedback effect. Instead it is shown that no net feedback exists within the echelons due to cancellations of feedback information. Hence, the amplification is due to the design of the feedforward of orders through the supply chain.

    A difficult problem is the performance evaluation of dynamic systems. It is known that the net present value of a system can easily be obtained if a Laplace or z-transform model of the system and its cash flows exists. This theory is expanded also to cover general state space models and an application to a simple production-inventory model is given. In most cases, however, the models do not capture all aspects of economic relevance. Instead, as a complement to the cash flow based analysis, a multiple criteria approach for evaluating complex systems is suggested.

  • 165.
    Wikner, Joakim
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Hantering av osäkerhet i försörjningskedjor med utgångspunkt i frikopplingspunkter2005Ingår i: Produktionslogistik 2005: kvalitet och effektivitet i hela försörjningskedjan : artiklar från PLANs forsknings- och tillämpningskonferens i Borås den 18-19 augusti 2005 / [ed] Daniel Ekwall, Borås: Högskolan i Borås , 2005, s. 221-236Konferensbidrag (Övrigt vetenskapligt)
    Abstract [sv]

    Utformning av strategier för försörjningskedjor har rönt allt större uppmärksamhet de senaste åren. Släktskapet med produktionsstrategier är till vissa delar påtagligt och en viktig faktor i båda fallen är att skapa ett robust system som kan hantera olika typer av osäkerhet. Osäkerheten utgörs av många olika faktorer med externt såväl som internt ursprung. Genom att renodla bilden av materialflödet i systemet kan man karakterisera osäkerheten som antingen osäkerhet i förbrukning eller osäkerhet i försörjning. För att hantera dessa osäkerheter har man traditionellt etablerat olika typer av buffertar för attfrikoppla olika delsystem från varandra och därmed minskat risken för att hela systemet exponeras för risken. Ur ett strategiperspektiv försöker man idag också hantera osäkerheten genom att vara responsiv och använda flexibel kapacitet för att möta osäkerhet. Detta innebär bl.a. att man istället skapar buffertar i termer av extrakapacitet som möjliggör att man kan möta variationer i t.ex. efterfrågan utan att leveransledtiderna varierar. Ytterligare verktyg utgörs av flödesaggregering och informationsdelning vilket totalt sett ger fyra strategiska verktyg för utformning av logistiksystem. Användningen av dessa verktyg underlättas av ett antal riktlinjer för hur de fyra verktygen kan användas. Den centrala riktlinjen är att konfigurera konkurrenskraftiga logistik¬system med utgångspunkt i att möta osäkerhet i både förbrukning och försörjning görs genom att skapa en konkurrenskraftig balans mellan effektivitet och responsivitet.

  • 166.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Bäckstrand, Jenny
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Grad av kundorderstyrning2009Ingår i: PLANs forsknings- och tillämpningskonferens 2009: effektiva och lönsamma försörjningskedjor : artiklar från konferensen på Växjö universitet 19-20 augusti 2009, Stockholm: PLAN , 2009, s. 161-172Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Grad av kundorderstyrning är ett begrepp som används i många sammanhang men kanske inte alltid vilar på en så tydlig definition om vad som avses. Den vanligaste utgångspunkten är nog att utgå ifrån när en produkt blir knuten till en kundorder. Det här innebär att delar av materialflödet uppströms är prognosdrivna och de senare delarna, vars ledtid ligger inom leveransledtiden, är kundorderdrivna. Dessa två flöden sitter ihop i en lagerpunkt som fungerar som en buffert mellan flödena och den benämns ofta kundorderpunkt. Om man dessutom beaktar att man kan ha en stigande grad av säkerhet om kundordern längs flödet så kan flödet delas in i tre segment: spekulation, förväntan och åtagande, där den senare ligger efter kundorderpunkten. En annan aspekt är hur varianter skapas längs flödet. Detta är nära förknippat med utformningen av produktstrukturen och kan associeras med var i strukturen som dessa varianter skapas, d.v.s. variantspridningspunkten. Produktstrukturer kan inom ramen för detta ha olika uppbyggnad som t.ex. en specialprodukt som görs helt kundunik, eller en standardprodukt som ser likadan ut för alla kunder. Däremellan återfinns modulariserade strukturer som har inslag av standardmoduler,baserat på vilka man kan sätta samman kundunika lösningar. Sammanfattningsvis finns det tre olika grader av säkerhet om kundorder och några olika modeller för att hantera variantspridning. Detta innebär ett antal möjliga kombinationer, men enbart en delmängd av dessa är att betrakta som konkurrenskraftiga strategier. Syftet med den här artikeln är att belysa hur grad av kundorderstyrning kan definieras som ett koncept baserat på positionering av kundorderpunkt respektive positionering av variantspridningspunkt.

  • 167.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Bäckstrand, Jenny
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Strategiska frikopplingspunkter och samverkan i försörjningskedjor2010Ingår i: Bättre Produktivitet, ISSN 1402-1145, Vol. 8, nr 8, s. 12-16Artikel i tidskrift (Övrigt vetenskapligt)
  • 168.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Bäckstrand, Jenny
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Strategiska frikopplingspunkter och samverkan i försörjningskedjor2010Ingår i: PLANs Forsknings- och tillämpningskonferens 2010: Efterfrågedrivna försörjningskedjor / [ed] Sandor Ujvari, Stockholm: Logistikföreningen PLAN , 2010, s. 111-122Konferensbidrag (Övrigt vetenskapligt)
    Abstract [sv]

    Ledning och styrning av försörjningskedjor kräver en god överblick över kedjornas grundläggande strukturella egenskaper och över hur samverkan mellan olika aktörer i kedjorna formeras. Fundamentala egenskaper ur detta perspektiv är hur verksamhetens processer är strukturerade och ur vilken utgångspunkt de är definierade. För att säkerställa att processer genomförs endast då ett behov är identifierat är det viktigt att fokusera på centrala processdrivare i flödet. Förutom att avgöra vad som initierar en process är det också viktigt hur, och av vilken aktör, processen planeras och styrs. Om en aktör har full kontroll över processen kan processen betecknas som styrbar ur den aktörens perspektiv men om den ligger utanför aktörens kontroll så kan den på motsvarande sätt beteckna som ostyrbar. Beroende på vilken aktör som styr en process och om samma eller en annan aktör genomför processen så skapas olika förutsättningar för utformning av hur dessa aktörer samverkar. Traditionellt har den typen av frågor, kopplat till leverantörssamverkan, behandlats inom inköpsstrategin. För att illustrera hur produktions- och inköpsstrategi kan knytas närmare varandra exemplifieras detta med hur den välkända Kraljic-modellen kan integreras i ett processbaserade ramverket med hjälp av fokus på ordervinnare.

  • 169.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Johansson, Eva
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Persson, Tong
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Process based inventory classification2009Ingår i: The 21st Annual Nofoma Conference 11-12 June 2009 Jönköping Sweden: Proceedings / [ed] Susanne Hertz, 2009, s. 875-889Konferensbidrag (Refereegranskat)
    Abstract [en]

    Purpose of this paper

    The purpose of this paper is to develop a process based approach for inventory classification that can provide operational support and also offer a baseline for evaluation of inventory management across different delivery strategies.

    Design/methodology/approach

    The research is based on a literature overview and deductive conceptual model development.

    Findings

    Taking a process approach to inventory management highlights the drivers of different types of decoupling points. This approach paves the way to a process based classification using endogenous and exogenous factors of supply and demand as key drivers of inventory classification, enabling a more generic approach to inventory management across different delivery strategies such as make-to-stock and assemble-to-order.

    Research limitations/implications

    Process based inventory classification does not provide improved support for an accounting driven perspective of inventory but provides a complementary operational focus. Future work involves empirical research using this classification as a foundation.

    Practical implications

    Inventory classifications are frequently based on the materials flows, e.g. raw materials, work in process, and finished goods) or volume (e.g. standard ABC inventory management). A process based classification is, however, of practical use in a set of contexts usually not emphasized by present methods.

    What is original/value of paper

    A new approach to inventory classification is presented which in contrast with most present standard techniques emphasizes a process based perspective. The technique is therefore well aligned with the key perspective of operations and supply chain management involving the balancing of supply and demand in replenishment and fulfilment processes.

  • 170.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Naim, Mohammed M.
    Rudberg, Martin
    Exploiting the Order Book for Mass Customized Manufacturing Control Systems With Capacity Limitations2007Ingår i: IEEE transactions on engineering management, ISSN 0018-9391, E-ISSN 1558-0040, Vol. 54, nr 1, s. 145-155Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Customer specific requirements is one of the key drivers in a supply chain strategy based on mass customization. At the same time there are intense pressure on price and short delivery lead times providing a complex environment for managing the supply chain. The complexity can be reduced by introducing the concept of a customer order decoupling point (CODP). The CODP separates the supply chain into two key processes that can be categorized as make-to-order (MTO) and make-to-stock (MTS) and constitutes the two key building blocks of a system based on the mass customization concept. The dynamic properties of the MTS environment have been extensively researched using the automatic pipeline-, inventory-, and order-based production control system (APIOBPCS) archetype. In contrast to MTS systems, the customer facing MTO process, which is usually exposed to a more volatile demand stream suitable for an agile strategy, is less well investigated. Agility does, however, frequently not mean that infinite capacity is available but that there is some surplus capacity available and that the capacity can be adapted to the customer requirements in certain time frames. When the adaptation is not instant but requires some time to take effect the delay creates a dynamic backlog represented by the order book which affects the delivery lead time. Since controlling lead times is a key factor in providing reliable delivery promises an order book control logic is introduced. It is also shown that the new MTO model of the customer facing part of a mass customization system is an extension to the well established APIOBPCS framework.

  • 171.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Naim, Mohammed, M.
    Towill, Denis, R.
    The System Simplification Approach in Understanding the Dynamic Behaviour of a Manufacturing Supply Chain1992Ingår i: Journal of Systems Engineering, ISSN 0938-7706, Vol. 2, s. 164-178Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The classic Forrester three-echelon supply chain model is frequently presented by authors, researchers and consultants as an example of the dynamical problems inherent in a badly designed supply chain. In particular, the Forrester model is said to highlight clearly the 'Law of Industrial Dynamics'; that is, demand is amplified at each echelon of a supply chain. Despite such widespread acceptance as an example of supply chain 'problems' there is no evidence that the Forrester model has been used as a basis for studies on developing general principles whereby such 'problems' may be avoided. In order to achieve the foregoing objective, this paper presents the analytical steps required in obtaining an understanding of the internal workings of Forrester's supply chain. Following the derivation of a block diagram representation of an echelon

    within the supply chain, system simplification is undertaken via the elimination of redundant information paths. Without this vital step, there is little doubt that the fundamental problem with this supply

    chain (that orders placed on an echelon pipeline comprise 'real' and 'safety' orders) would have been missed. Instead, by highlighting this fact at an early stage in the research an appropriate range of solutions may be developed.

    The paper describes the simplification procedures adopted.

  • 172.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Rudberg, Martin
    Integrating Production and Engineering Perspectives on the Customer Order Decoupling Point2005Ingår i: International Journal of Operations & Production Management, ISSN 0144-3577, E-ISSN 1758-6593, Vol. 25, nr 7, s. 623-641Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose – Traditionally the customer order decoupling point (CODP) has focused mainly on the separation of production performed on speculation from commitment to customer orders. Engineering has, with few exceptions in this context, simply been viewed as occurring before production activities in a sequential manner. As competition increases, customer requirements for short lead-times in combination with customisations requires further integration of processes involving both engineering and production activities making the traditional view of the CODP insufficient in these cases. The purpose of this paper is thus to provide a more general approach to enterprise integration of cross-functional processes in order to extend the applicability of the CODP as a logistics oriented concept.

    Design/methodology/approach – We use evolutionary approach to define the CODP as a two-dimensional concept based on the integration of engineering and production.

    Findings – The extended CODP captures the complexity in terms of possible configurations, but also provides a framework for the issues that must be handled when positioning the CODP in terms of both engineering and production simultaneously.

    Practical implications – The two-dimensional CODP is an important extension to make the theory better reflect reality and hence increase the scope and acceptance of both the concept CODP per se, and the analysis based on the CODP.

    Originality/value – By the introduction of a new two-dimensional approach, a more comprehensive CODP typology is defined. We also provide a classification of customer order influence based on a combined engineering and production perspective where the efficient CODPs constitute a set providing the highest level of customer value in terms of engineering adaptations.

  • 173.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Rudberg, Martin
    Introducing a Customer Order Decoupling Zone in Logistics Decision-Making2005Ingår i: International Journal of Logistics, ISSN 1367-5567, E-ISSN 1469-848X, Vol. 8, nr 3, s. 211-224Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The general aim of this paper is to explore the properties of the so-called customer order decoupling point (CODP) to enhance the knowledge and understanding of its possible use in operations and logistics. More specifically, the purpose is to enhance the applicability of the CODP framework so that it also covers scenarios with a gradual increase in certainty concerning information about customer demand. Differentiating between decisions made under certainty and decisions made under uncertainty of customer demand has been identified as a key issue in operations strategy and supply chain management. The CODP identifies this distinction but the concept is limited in that it assumes either total uncertainty or total certainty concerning customer demand. Acknowledging a gradual increase in certainty across multiple independent dimensions provides a point of departure for extending the decoupling point to a decoupling zone. Based on the decoupling zone, we extend the established framework for positioning the CODP and identify eight key decisions related to the decoupling zone that concern positioning, fulfilment strategies and buffer sizing.

  • 174.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Tang, Ou
    IEI.
    A structural framework for closed-loop supply chains2008Ingår i: International Journal of Logistics Management, ISSN 0957-4093, E-ISSN 1758-6550, Vol. 19, nr 3, s. 344-366Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose – The concept of the customer order decoupling point (CODP) has been used in manydifferent contexts as an important structural concept for the traditional forward supply chain. TheCODP is rarely explicitly applied in reverse supply chain management and the purpose of this paper isto show that the CODP can be an important corner stone of a framework for analysis of the closed-loopsupply chain containing both forward and reverse material flows.Design/methodology/approach – Conceptual similarities are identified using analogies betweenforward and reverse supply chains. First, the concepts are discussed in their original context offorward flows and thereafter the concepts are applied on reverse flows. Finally, a holistic closed-loopmodel is established.Findings – The conventional CODP framework for forward flow supply chains can be extended tocover also reverse material flows and therefore providing a foundation for a more comprehensivediscussion of closed-loop supply chains useful in both education, research, and industrial applications.Using the suggested extended framework it is possible to identify nine fundamental supply chainconfigurations.Practical implications – Differentiating between demand driven and forecast driven activitiesplays a critical role in practical supply chain management and this paper highlights that this approachalso can be applied to closed-loop supply chains and therefore extending the reach of the toolboxpreviously developed for the forward supply chain.Originality/value – The concept CODP has not previously been comprehensively treated for theclosed-loop supply chain and this paper provides a foundation for establishing a strategic structuralframework for discussing issues such as lean vs agile and balancing efficiency and responsiveness in amore comprehensive context involving also reverse material flows.

  • 175.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Tang, Ou
    Differentiering inom återkopplade logistiksystem baserat på kundorderpunkten2006Ingår i: Plans forsknings- och tillämpningskonferens 2006: effektivitet och samverkan i försörjningskedjor : artiklar från konferensen på Högskolan Väst i Trollhättan den 23-24 augusti 200 / [ed] Oscar Jellbo och Rikard Sjöström, Trollhättan: Högskolan Väst , 2006, s. 260-276Konferensbidrag (Övrigt vetenskapligt)
    Abstract [sv]

    Försörjningskedjor har vanligtvis fokus på det s.k. framåtflödet från råmaterial till kunder på marknaden. I många sammanhang är dock även returflödet av stor betydelse, men utvecklingen av koncept och verktyg för att styra dessa flöden har inte samma omfattning som för framåtflödet. T.ex. finns det idag en god förståelse för kundorderpunktens betydelse i framåtflöden för att tydliggöra de olika förutsättningarna i det prognosdrivna respektive det efterfrågedrivna flödet. Den här artikeln syftar till att visa att kundorderpunkten även kan vara ett viktigt hjälpmedel i analysen av returflöden och därmed också för hela det återkopplade logistiksystemet. Genom att förstå hur kundorderpunkten även kan användas i returflödet så öppnas möjligheter för att se analogier mellan framåt- och returflödet och därmed underlätta för att se hur metoder och tekniker inom en typ av flöde också kan tillämpas på den andra typen av flöde.

  • 176.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Towill, Denis, R.
    Mohammed, Naim
    Smoothing Supply Chain Dynamics1991Ingår i: International Journal of Production Economics, ISSN 0925-5273, E-ISSN 1873-7579, Vol. 22, nr 3, s. 231-248Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A three-echelon Forrester production distribution system is used as a supply chain reference model for comparing various methods of improving total dynamic performance. Many authors have exploited the original simulation results for the nominal system, especially when describing problems associated with supply chain behaviour. However, few of these authors have attempted to produce a dynamically superior supply chain as distinct from offering detailed organisational and attitudinal changes needed to achieve any improvement. As the starting point of this paper, the production-distribution system has been transformed into a block diagram representation capable of considerable simplification. A combination of analysis and simulation can then be used to gain a far deeper understanding of the system dynamics than has so far been published. Thus, although the Forrester model is far from optimal, it does provide a well established benchmark against which proposals may be evaluated. For the purpose of illustration, five different approaches are then used to improve the supply chain dynamics. These are

    -“fine tuning” the existing ordering policy parameters;

    -reducing system delays;

    -removal of the distribution echelon;

    -changing the individual echelon decision rules;

    -better use of information flow throughout the supply chain.

    It is shown that by better utilisation of the information flow, significant reductions in the demand amplification can be achieved without substantial expenditure. This is because it is only necessary to separate out the flow of “real” orders from “system” orders as they are passed up the chain. Such collaboration does, however, correspond to the establishment of an integrated supply chain in which the concept of “total system stocks” is accepted.

  • 177.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Towill, Denis R.
    Naim, Mohammed M.
    A Reference Model for Smoothing Supply Chain Dynamics1991Ingår i: Transformation of Science and Technology into Productive Power: Proceedings of the XIth International Conference on Production Research, 1991, s. 405-411Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    A three-echelon Forrester production distribution system is used as a supply chain model for comparing various methods of improving total dynamic performance. Five different approaches are used. These are:

    - "fine tuning" the existing ordering policy parameters;

    - reducing system delays;

    - removal of the distribution echelon;

    - changing the individual echelon decision rules;

    - better use of information flow throughout the supply chain.

    It is shown that by better utilisation of the information flow, substantial reductions in the demand amplification can be

    achieved without substantial expenditure.

  • 178.
    Wikner, Joakim
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Wong, Hartanto
    Naim, Mohammed
    Postponement based on the positioning of the differentiation and decoupling points2007Ingår i: Advances in Production Management Systems: International IFIP TC 5, WG 5.7 Conference on Advances in Production Management Systems (APMS 2007), September 17–19, Linköping, Sweden / [ed] Jan Olhager, Fredrik Persson, New York: Springer , 2007, s. 143-150Konferensbidrag (Refereegranskat)
    Abstract [en]

    Structural analysis of supply chains often involves postponement to some degree. The concept has received a lot of attention in the literature but the understanding of how to operationalize the concept still deserves some attention. A framework is introduced that provides an integrative picture of how different aspects of supply chain and operations management interplay in a postponement context. The framework is founded on a process/object perspective where a set of characteristics, properties and concepts are identified for each entity.

  • 179.
    Winroth, Mats
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell produktion.
    On Manufacturing Strategies: Competing Through Inter-Organizational Collaboration2004Doktorsavhandling, monografi (Övrigt vetenskapligt)
    Abstract [en]

    Globalization increases the competition among small and medium sized companies. It is possible for their customers, often large systems integrators, to choose suppliers from all around the world. Swedish suppliers are often not competitive only regarding cost consequently simple work tasks are more and more located in low wage countries. One way for the Swedish suppliers to compete is to collaborate with other suppliers, thus adding extra value for their customers. If companies plan to collaborate they need however to coordinate their activities to enable efficient product realization. The companies have different production systems and manufacturing strategies that should be coordinated. The purpose of this research is to investigate the role of manufacturing strategies and the relations between manufacturing strategies and design of production systems in different organizational settings. Organizational aspects on collaborative manufacturing settings are also studied. The research has been carried out through a number of case studies, thus adding empirical value to existing theory. A production system framework is proposed that links the competitive priorities of the company and the manufacturing strategies to the design of the production system. This framework can be used to highlight the dynamic interaction between companies in inter-organizational collaborative manufacturing settings involving small- and medium sized enterprises. In collaborative settings, there is one main flow of information, i.e. from a dominating partner, normally the systems integrator, to a more subordinate partner, normally the supplier. The concept of asymmetric domination is introduced, showing this asymmetric situation. The asymmetric domination gives input to decisions regarding which competitive priorities the collaborative setting should aim at fulfilling with its production systems. The selforganizing aspect on collaborative settings is introduced as a mean to enable more efficient operations. Mutual work tasks are facilitated through reduction of the formal control. Finally, experiences from a number of studies of manufacturing networks in Sweden are synthesized and an integration framework for handling the complexity in collaborative networks is introduced.

  • 180.
    Winroth, Mats
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    On Manufacturing Strategies: Implementation and utilization at some Swedish manufacturing industries2001Licentiatavhandling, monografi (Övrigt vetenskapligt)
    Abstract [en]

    This thesis discusses the issue of manufacturing strategies. Many articles and books on this matter have been published during the last 30 years, the majority being focused on American or British companies. Research on the formulation and implication

    of manufacturing strategies in Swedish companies, however, is limited. This thesis focuses on findings from two large-scale Swedish companies, Saab Automobile AB and Ericsson Mobile Communications AB, known for their work on manufacturing

    strategies, and from 62 medium sized enterprises. The main objectives of the manufacturing system are to manufacture products that satisfy the customer as well as to give the manufacturer a good return on investment. The studies show that manufacturing strategies play an important role in these efforts and they always form the base for the specification of the manufacturing system. Furthermore, the studies show that SAAB and Ericsson work actively with manufacturing strategies. The most important factors vary, but quality, cost, delivery precision and, concerning consumer products, Time To Market (TTM) are always considered essential to the success of the company. It is also essential that the top management of

    the company recognize this importance of the strategies. Strategies are not directly used in the daily work, but the personnel work towards short-term, easily comprehensible,

    targets that are derived from the manufacturing strategies.

    To get a wider view of the situation in Swedish industry, a survey among a large number of medium sized enterprises was performed. The result showed that also these companies work with strategies, however, not as systematically as Saab and Ericsson and the strategies are not always documented and implemented. The most valued competitive priorities were quality and delivery precision/reliability. It was also shown that a majority of these companies had certified quality management or environmental management systems.

  • 181.
    Winroth, Mats
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Outsourcing vs. Collaboration in Manufacturing Networks: From a manufacturing strategy perspective2004Ingår i: Proceedings of the Second World Conference on POM and 15th Annual POM Conference, 2004Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    One of the most important components in manufacturing strategy is quality, which in fact has become more or less a matter of course. Purchased material is subject to inspection upon reception. At the same time, the degree of outsourcing is steadily increasing in the manufacturing industry, often motivated by reduction of cost. The dimension of interaction, concerning e.g. product design, is often lost on the way, which can cause problems in manufacturing. The company is thus forced to keep a certain competence in manufacturing in order to be able of discussing with the suppliers. One way of getting the advantages of outsourcing and still keeping a climate of continuous learning between the companies is to cooperate in manufacturing networks. This paper elaborates on different views on manufacturing strategies among Swedish manufacturing companies and the suggestion that collaborating networks can give certain competitive advantages.

  • 182.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Björkman, Mats
    LIU, IKP.
    Application of Manufacturing Strategies: The influence of manufacturing strategies upon the decision process when investing in new assembly equipment2001Ingår i: CIRP Journal of Manufacturing Systems, Vol. 31, s. 6-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article presents the results from a series of interviews at Ericsson Mobile Communications AB in Sweden.

    Topics covered are both the overall objectives of the company and the manufacturing strategies formulated to support these objectives. One interesting issue is the status of manufacturing and the influence manufacturing is allowed to have upon the process of designing new phones and developing new technology. The strategies are compared to some theory in the area and similarities and differences are discussed. Finally there is a discussion of manufacturing of cellular phones in the future, closely related to the design of future products.

  • 183.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Björkman, Mats
    LiU, IKP.
    Application of Manufacturing Strategies: The influence of manufacturing strategies upon the decision process when investing in new assembly equipment2000Ingår i: Proceedings from the 33rd CIRP International Seminar on Manufacturing Systems, 2000Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    This article presents the results from a series of interviews at Ericsson Mobile Communications AB in Sweden. Topics covered are both the overall objectives of the company and the manufacturing strategies formulated to support these objectives. One interesting issue is the status of manufacturing and the influence manufacturing is allowed to have upon the process of designing new phones and developing new technology. The strategies are compared to some theory in the area and similarities and differences are discussed. Finally there is a discussion of manufacturing of cellular phones in the future, closely related to the design of future products.

  • 184.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Björkman, Mats
    LIU, IKP.
    Aspects On Manufacturing Strategy: A Case Study At Saab Automobile, Sweden2001Ingår i: Proceedings of the 12th Annual Conference of the Production and Operations Management Society: POM-2001, 2001Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Saab Automobile, Sweden, is a relatively small car manufacturer in the prestige car segment. Saab is fully owned by GM since the beginning of 2000. This article is based on a series of interviews. Questions dealt with are: the process of going from a poor financial result to a successful car manufacturer, experiences so far from being a part of the largest company in the world, and implementation of manufacturing strategies. As a step in this process, Saab has developed its own model of lean manufacturing, called the QLE/H-concept, and is now introducing the Andon sys-tem.

  • 185.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Björkman, Mats
    LIU, IKP.
    Manufacturing strategies: A survey among medium sized enterprises in Sweden2001Ingår i: Proceedings of the 34th CIRP International Seminar On Manufacturing Systems, 2001Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Manufacturing is the part of many companies that involves most of the investments made in the company. Thus it is extremely important to get a sufficient return on these investments. The manufacturing equipment must be utilized in a competitive way. This paper presents the findings from a survey at 145 medium sized companies in Sweden regarding their work with manufacturing strategies. 62 companies answered the form and 52 companies said that they had a manufacturing strategy. Quality, lead-time, and flexibility were considered very important. Delivery precision appears to be even more important than the actual product cost.

  • 186.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Björkman, Mats
    LiU, IKP.
    Manufacturing strategies: A survey among medium sized enterprises in Sweden2003Ingår i: CIRP Journal of Manufacturing Systems, Vol. 32, nr 3, s. 9-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Manufacturing is the part of many companies that involves most of the investments made in the company. Thus it is extremely important to get a sufficient return on these investments. The manufacturing equipment must be utilized in a competitive way. This paper presents the findings from a survey at 145 medium sized companies in Sweden regarding their work with manufacturing strategies. 62 companies answered the form and 52 companies said that they had a manufacturing strategy. Quality, lead-time, and flexibility were considered very important. Delivery precision appears to be even more important than the actual product cost.

  • 187.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Björkman, Mats
    LIU, IKP.
    Use of Manufacturing strategies in reality: A company’s overall view of manufacturing and possible obstacles to realization of the strategies2000Ingår i: Proceedings of the 4th International Conference on Managing Innovative Manufacturing: MIM 2000, 2000, s. 658-667Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    A study of Ericsson regarding manufacturing and its position in the company. At Ericsson manufacturing has a fairly high rank and is also involved in the product development process at an early stage. The responsibilities for developing manufacturing strategies are delegated to the people at the different plants. Some small differences and competition between the plants are accepted, as long as it does not have a bad influence on the result. Any cultural differences could however be a severe obstacle to realizing the strategies. Further studies could cover small and medium enterprises and their adoption of manufacturing strategies.

  • 188.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Borges, Luis
    Tech Monterrey, Mexico City.
    How different is Sweden from Mexico?: A continuous improvement survey comparison2004Ingår i: Proceedings of the Second World Conference on POM and 15th Annual POM Conference, 2004Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Continuous improvement techniques are important tools for enabling companies to improve their operations. The implementation of these techniques is however estimated to be quite different around the world. Continuous improvement is a thermometer that companies can use to feel their health in this hectic market. This paper compares two countries, Mexico and Sweden, which are considered to be quite different in culture and industrial structure, in terms of the use of continuous improvement tools and techniques, such as TQM, Kaizen, Six-Sigma, and Lean Manufacturing.

    The surveys in the two countries are based on the same scale, sample size, and industrial sector. A definition of each of the key-words was included in the questionnaire. The results indicate both similarities and differences in the strengths and weaknesses of the companies. The companies can work on the results to benchmark themselves and they can reinforce their strengths as well as to reduce their weaknesses.

  • 189.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Danilovic, Mike
    Internationella Handelshögskolan, IHH, EMM (Entrepreneurskap, Marknadsföring, Management). JTH. Forskningsområde Industriell produktion.
    Linking Manufacturing Strategies to Design of Production Systems in Collaborative Manufacturing Settings2003Ingår i: Proceedings of the POM 2003 Conference, 2003Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Competition has forced companies to collaborate in manufacturing network settings to be capably to deliver complete subsystems. We suggest in this paper an analytical tool to analyze the linkages between manufacturing strategies and design of production systems in collaborative manufacturing network settings. We show how this analytical tool might be used to analyze how companies in such networks synchronize their manufacturing strategies and production systems in terms of competitive priorities and synergies between them. The findings in this paper are based on a series of interviews with people at companies in a collaborative network delivering heavy vehicles.

  • 190.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Danilovic, Mike
    Internationella Handelshögskolan, IHH, EMM (Entrepreneurskap, Marknadsföring, Management). JTH. Forskningsområde Industriell produktion.
    Manufacturing Strategies: Congruence Of Manufacturing Processes Within A Supply Chain2002Ingår i: Proceedings of the 13th Annual Conference of the Production and Operations Management Society: POM-2002, 2002Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    It is extremely important that companies, working together in a system manufacturer/sub supplier relationship, agree on which strategic factors to prioritize. A mismatch could make the cooperation less successful than if they agree on the competitive priorities. A tool for evaluating the congruence between the manufacturing strategies and the existing manufacturing system has been described by Professor John Miltenburg (1995). Säfsten and Winroth (2001) developed this tool further. The purpose of this paper is to show one example of using this tool for a supply chain, i.e. for a system manufacturer and his sub suppliers.

  • 191.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Danilovic, Mike
    Högskolan i Jönköping, Internationella Handelshögskolan, IHH, EMM (Entreprenörskap, Marknadsföring, Management). Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Boix Miralles, Rafa
    Universitat Politècnica de Catalunya.
    Manufacturing Networks: Critical Factors to Successful Collaboration2004Ingår i: CIRP Journal of Manufacturing Systems, Vol. 33, nr 3Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The competitive situation for Small and Medium Sized Enterprises, SME’s, has become intensified during the last few years. Large customers, such as within the automotive industry, have increased the outsourcing of their manufacturing capacity and reduced the number of suppliers. At the same time the large systems integrators place demands on their suppliers to actively participate in the product development and to take full responsibility for manufacturing as well as to deliver complete systems or subsystems. Due to the limited capacity of the suppliers, in terms of the scarcity of resources and limited knowledge base, suppliers need to collaborate in networks. The purpose of this study is to identify critical factors to successful network collaborative settings. In this paper we also introduce a four dimensional tentative framework, in terms of surface of integration, the scope of integration, the time horizon of integration, and the intensity of integration. This framework can be used to analyze how well collaborative networks are developed from three aspects of corporate integration, in terms of structural design of the network, the design of the work flow in collaborative settings, and aspect of handling the psychological and social boundaries among people, that management has to handle in order to increase the degrees of network collaboration. This tentative framework is suggested as an analytical tool that can be used in order to understand how different collaborative networks are developed in terms of the network constellation, output of the collaborative process, as well as duration and robustness of the network.

  • 192.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Danilovic, Mike
    Högskolan i Jönköping, Internationella Handelshögskolan, IHH, EMM (Entreprenörskap, Marknadsföring, Management). Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Fernández Aguilar, Alfonso
    Escola Tècnica Superior d’Enginyeria Industrial de Barcelona, Barcelona, Spain.
    Flaquer Borràs, Oriol
    Escola Tècnica Superior d’Enginyeria Industrial de Barcelona, Barcelona, Spain.
    Dynamics of sourcing A. & , O., 2007, , ,: Strategic implications of outsourcing and insourcing2007Ingår i: Proceedings of the 14th International Annual EurOMA Conference- Managing Operations in an Expanding Europe, 2007Konferensbidrag (Refereegranskat)
    Abstract [en]

    From a strategic manufacturing perspective, companies are facing challenges in finding a balance in what they do on their own and what their suppliers do. This balance requires some times that companies are outsourcing and sometimes insourcing activities. One conclusion is that outsourcing should be considered as a strategic decision that is not easily made by purchasing or operations departments. Many companies tend to outsource more and more of their manufacturing to specialists, which however does not mean that companies can afford to loose their competence in manufacturing. It is still essential that the companies, even though another company performs parts of the actual manufacturing, understand the special conditions for manufacturing. Otherwise they are not in a position where they can discuss product development, specification of the different tasks that they want the contractors to do, and they can certainly not make the right decisions when buying components and parts from suppliers. Outsourcing decisions also need to be strategically justifiable; outsourcing only for cost reasons is rarely successful. Outsourcing should provide other advantages in terms of improvement of competitive priorities. For different reasons, it may also end up in a situation where the company needs to insource previously outsourced activities.

  • 193.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion. Produktionssystem.
    Jackson, Mats
    PPD, MdH.
    Manufacturing competition through the Factory-in-a-Box concept2007Ingår i: Proceedings of the 18th Annual POM Conference, 2007Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Today’s business environment is dominated by change and uncertainty, and global competition is diminishing defined markets. Manufacturing success and survival are becoming more difficult to sustain and it is recognized that low cost and high quality alone are not enough to sustain firm’s competitive position in market place. Market uncertainty and frequent introductions of new products has created a growing need for responsive manufacturing systems. Thus, there is a growing demand for well-formulated and implemented manufacturing strategies which provide necessary support for developing and sustaining relevant order-winners and qualifiers, which enable rapid product realization as well as flexibility and reconfigurability within operations. The objective of this paper is to analyze and investigate flexible and reconfigurable production systems from a manufacturing strategy point of view. An ongoing research project in Sweden called Factory-in-a-Box will be presented which is one initiative in this area.

  • 194.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. JTH. Forskningsområde Industriell produktion.
    Jackson, Mats
    PPD, MdH.
    Manufacturing competition through the Factory-in-a-Box concept2007Ingår i: Proceedings of the 18th Annual POM Conference, 2007Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Today’s business environment is dominated by change and uncertainty, and global competition is diminishing defined markets. Manufacturing success and survival are becoming more difficult to sustain and it is recognized that low cost and high quality alone are not enough to sustain firm’s competitive position in market place. Market uncertainty and frequent introductions of new products has created a growing need for responsive manufacturing systems. Thus, there is a growing demand for well-formulated and implemented manufacturing strategies which provide necessary support for developing and sustaining relevant order-winners and qualifiers, which enable rapid product realization as well as flexibility and reconfigurability within operations. The objective of this paper is to analyze and investigate flexible and reconfigurable production systems from a manufacturing strategy point of view. An ongoing research project in Sweden called Factory-in-a-Box will be presented which is one initiative in this area.

  • 195.
    Winroth, Mats
    et al.
    Chalmers University of Technology.
    Johansson, Glenn
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    A Manufacturing Strategy Perspective on Lean and Green Manufacturing2009Ingår i: Proceedings of The International 3rd Swedish Production Symposium, SPS'09 / [ed] BG Rosén, The Swedish Production Academy , 2009Konferensbidrag (Refereegranskat)
  • 196.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Johansson, Glenn
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Implications from introducing sustainability in manufacturing strategies2008Ingår i: Proceedings of the 19th Annual POM Conference, 2008Konferensbidrag (Refereegranskat)
    Abstract [en]

    Increasing focus on sustainability in society forces industrial companies to consider environmental impacts resulting from their activities. Unfortunately, research within the “environmental” domain has to a high degree evolved separately from the “manufacturing” domain, leading to poor understanding regarding how to manage environmental issues in a manufacturing context. To reduce this flaw, this paper takes the starting point in a manufacturing strategy perspective and analyses implications occurring from the inclusion of environmental issues in industrial companies. The paper suggests that concern for environmental issues influence more or less all of the manufacturing strategy decision criteria. Environmental concern may e.g. affect the decision on manufacturing process choice (e.g. new product technology may require new types of manufacturing processes) or on process technology (e.g. new manufacturing equipment are needed). Therefore, the paper concludes that it is paramount to consider environmental issues when formulating and effectuating the manufacturing strategy.

  • 197.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Säfsten, Kristina
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Automation Strategies: Implications on strategy process from refinement of manufacturing strategy content2008Ingår i: Proceedings of the 19th Annual POM Conference, 2008Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Automation decisions are often based on vague ideas that it is always good to automate and thus reducing manpower. These decisions need however to be linked to company manufacturing strategies. If we study the manufacturing strategy field, we can see that these decisions give large consequences in many decision categories. Articles on manufacturing strategy content have been written by e.g. Skinner (1969), Wheelwright & Hayes (1985), Ward et al (1996), Hill (1995), and Swink & Way (1995). Hayes and Wheelwright (1984) developed the content, in terms of decision criteria, as they provided examples of decisions characteristics. This article reviews existing theory on manufacturing strategy content and highlights the implications for manufacturing strategy process when adding more decision characteristics from automation.

  • 198.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Säfsten, Kristina
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Lindström, Veronica
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Frohm, Jörgen
    PPU, CTH.
    Stahre, Johan
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Automation Strategies: Refinement of Manufacturing Strategy Content2006Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Automated manufacturing systems are regarded as highly productive, which improves company’s competitiveness. Many companies consider automation as either fully automated or entirely manual. This is never true since there is always a combination of automated and manual tasks. The delicate issue is to choose the level of automation, LoA, which is best for the purpose. When planning and implementing automated manufacturing systems, a large number of issues need to be considered. Traditional manufacturing strategy theory however treats automation as one subset of process technology decision category. In our research we have come to the conclusion that automation decisions affect much more of the company’s operation activities. Thus, there is a need for developing the manufacturing strategy field in order to embrace relevant aspects/decisions in all of the decision categories. This paper aims at bridging the gap in traditional manufacturing strategy theory and highlights the additional decisions that are necessary in order to cover automation.

    The authors suggest a decision support tool that highlights the different actions that are needed when changing the level of automation in manufacturing systems.

  • 199.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Säfsten, Kristina
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Stahre, Johan
    Automation strategies: Existing theory or ad hoc solutions?2005Ingår i: POM 2005 : 16th Annual Conference Proceedings of POMS: "OM frontiers: winds of change" : Chicago, April 29 - May 2, 2005 : proceedings - full length papers., 2005Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Modern manufacturing systems are often semi-automated, i.e. integrating both manual and automated operations. How, and even if, automation should be realized are often ad hoc decisions and not based on structured decision making. This paper examines three approaches to automation decisions: top-down, bottom-up, and contingency. Top management initiates a top-down approach to automation of production. On the contrary, when the decision about automation stems from e.g. the operators, a bottom-up approach is applied. We propose a third way, the contingency approach, which links decisions regarding automation to manufacturing strategies and competitive priorities of the company. Making automation decisions is one of several decision areas that emerge as a consequence of choosing a certain type of production system. The paper discusses important factors for the success of different approaches. Different approaches are illustrated with examples from Swedish manufacturing industry.

  • 200.
    Winroth, Mats
    et al.
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Säfsten, Kristina
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Industriell organisation och produktion. Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsområde Industriell organisation och produktion.
    Stahre, Johan
    Automation strategies: Existing theory or ad hoc solutions?2007Ingår i: International Journal of Manufacturing Technology and Management (IJMTM), ISSN 1368-2148, E-ISSN 1741-5195, Vol. 11, nr 1, s. 98-114Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Automating manufacturing systems potentially improves competitiveness. Empirical studies show that the most successful result is achieved when decisions concerning automation are linked to the manufacturing strategies and competitive priorities of the company. It is suggested that automation is regarded as a separate decision group, within the manufacturing strategy content field.

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