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Data Modeling Made Simple: A Practical Guide for Business and IT Professionals by Steve Hoberman

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CHAPTER 8 What are conceptual data models?

Need the Big Picture?No common definitions?Build a CDM!

The highlighted row in Table 8.1 shows the focus of this chapter: the conceptual data model (CDM).

Relational

Dimensional

Conceptual Data Model (CDM)

“One-pager” on business rules

“One-pager” on navigation

Logical Data Model (LDM)

Detailed business solution on business rules

Detailed business solution on navigation

Physical Data Model (PDM)

Detailed technical solution

Table 8.1 The Conceptual Data Model is the focus of this chapter

A CDM shows the key concepts in a particular area and how these concepts interact with each other. This chapter defines a concept, followed by an explanation of the importance of ...

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