A data model is a collection of conceptual tools for describing —

20182021

Answer: C. data, data relationship, data semantics and consistency constraints — A data model defines: the structure of data (what data is stored and how it is organized).

1. A.

   data and data relationship

2. B.

   data semantics and consistency constraints

3. C.

   data, data relationship, data semantics and consistency constraints

4. D.

   None of the above

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