Generalised Enterprise Reference Architecture and Methodology: Difference between revisions
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Figure 3 represents the chain of enterprise entity developments. The type 1 entity will always start creation of any lower level entity by identifying goal, scope and objectives for the particular entity. Development and implementation of a new enterprise entity (or new business unit) will then be done by a type 2 entity; whereas a type 3 entity will be responsible for developing and manufacturing a new product (type 4 entity). With the possible exception of the type 1 entity all enterprise entities will have an associated entity-life cycle. However, it is always the operational phase of the entity-life cycle in which the lower entity is defined, created, developed and built. The operation itself is supported by an associated methodology for enterprise engineering, enterprise operation, product development and production support
[[File:GERA Enterprise-Entity Concept--Type 3.
Figure 3 also shows the life cycle of the methodology (type 5 entity) and the process model developed during the early life cycle phases of the methodology. However, there must be a clear distinction between the life cycle of the methodology with its different phases and its process model. The latter is used to support the operational phase of a particular enterprise entity. The operational relations of the different entity types are also shown in Figure 4: GERA Enterprise Entity Concept (Type 3), which demonstrates the contributions of the different entities to the type 3 entity life-cycle phases. The manufacturing entity itself produces the enterprise product in the course of its operation phase (type 3 entity).
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