Further Connections Between the Life-Cycles Identified

When developing the present form of the matrix representation it was the target of considerable debate whether to include the "build" phase in the life-cycle models or not? CIM-OSA did not include this in the CIM-OSA cube, nor did the first version of the matrix presentation as contributed to [2]. This controversy can be resolved now:

• The life-cycle model includes all major phases of building the enterprise thus building it can not be left out (``build'' should be in the life-cycle matrix).

• The descriptions of each phase are about the entity under consideration. E.g., if looking at matrix #4 then in each phase there should be some description of the product, because the matrix describes the product's life cycle.

  This is not true of the build phase. The description given there is not what the product is but how the product is built.

  However, the "build" phase is actually a part of the "operate" phase of the matrix above. That is: by operating the enterprise the products are built.

It therefore does no harm incorporating the "build" models in the life cycle of any entity with the understanding that the build process is part of the operation one level above.