Approaches and methods for enterprise modeling have been the subject of discussion and development in industry and academia during at least the last 30 years. Enterprise modeling supports organizations in coping with challenges related to dynamically changing business environments and the alignment of business goals and information systems to support these goals. For this purpose, different perspectives of an enterprise have to be taken into account—and, also, to be part of enterprise models, such as business goals, processes, products, services, business rules, and organization’s structures. 4EM (for enterprise modeling) is an enterprise modeling method that offers a modeling language covering the different perspectives in conjunction with guidelines for the modeling process, strong stakeholder participation, and a project-based approach to conducting enterprise modeling.