Chapter 11 Category Eight: Definitions How good are the definitions?

The “Definitions” category reduces doubt about the meanings of the attributes and entities. Doubts and misinterpretations lead to model ambiguity. Good definitions support precision on the data model diagram. This category confirms all of the entity and attribute definitions have three characteristics: clarity, completeness, and correctness.

Clarity means that a reader can understand the meaning of a term by reading the definition only once. A clear definition does not require the reader to decipher how each sentence should be interpreted. The definition contains ...

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