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Here you'll find one key to the development of a successful information system: Clearly capture and communicate both the abstract and concrete building blocks of data that describe your organization.
In 1995, David Hay published Data Model Patterns: Conventions of Thought - the groundbreaking book on how to use standard data models to describe the standard business situations. Enterprise Model Patterns: Describing the World builds on the concepts presented there, adds 15 years of practical experience, and presents a more comprehensive view.
You will learn how to apply both the abstract and concrete elements of your enterprise's architectural data model through four levels of abstraction:
Level 0: An abstract template that underlies the Level 1 model that follows, plus two meta models:
Level 1: An enterprise model that is generic enough to apply to any company or government agency, but concrete enough to be readily understood by all. It describes:
Level 2: A more detailed model describing specific functional areas:
Level 3: Examples of the details a model can have to address what is truly unique in a particular industry.
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