4 CORPORATE DATA MODELLING
This chapter looks at the subject of corporate data modelling and sees how it differs from project- or business-area-level data modelling. It introduces and discusses three approaches to the development of a corporate data model and six principles of corporate data modelling.
WHY DEVELOP A CORPORATE DATA MODEL?
In many respects a corporate data model is similar to the project-level conceptual data model we encountered in Chapter 2. It comprises definitions of the things of significant interest to the business (the entity types), definitions of what we need to know about those things (the attributes) and the associations between them (the relationships). A corporate data model is only different because its scope ...
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