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. Three approaches to the development of a corporate data model and six principles of corporate data modelling are introduced and discussed.
WHY DEVELOP A CORPORATE DATA MODEL?
In many respects a corporate data model is very similar to the project-level conceptual data model we described 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 different because its scope extends ...