Enterprise Data Modeling
The most important data is not that which is locked within individual applications, but rather the data which transcends applications and reaches throughout the enterprise. This chapter explains enterprise data models and gives advice for constructing them.
This chapter uses the UML notation alone for enterprise data models and foregoes IE. For an enterprise data model, we prepare a conceptual model and sometimes a simplified logical model. There is no need for the fine detail that comes with the IE notation.
12.1 What Is an Enterprise Data Model?
Typically, most data models are built for a specific application. However, some data transcends applications and does not belong to a single application. Such data can ...