A data model is a collection of conceptual tools for describing —
2018
A data model is a collection of conceptual tools for describing —
- A.
data and data relationship
- B.
data semantics and consistency constraints
- C.
data, data relationship, data semantics and consistency constraints
- D.
None of the above
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Correct answer: C
A data model defines: the structure of data (what data is stored and how it is organized).