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Data Modeling for the Business: A Handbook for Aligning the Business with IT using High-Level Data Models by Chris Bradley, Donna Burbank, Steve Hoberman

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The energy company chose a Top-Down Approach, as they had ample business resources and their goal was to identify a high-level view of information resources as part of an enterprise architecture initiative. Since their focus was on operational data, they chose a relational model format. To this end, they began by creating a very high-level data model as a ‘one-pager’ view of all of the key subjects within the organization. These can be recognized as the key nouns of the enterprise, which are identified as subjects in the VHDM. 

The very high-level data model was designed with communication very much in mind. The concept of a subject within the VHDM is one which was familiar to many of the senior business users in the company and why ...

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