Data Modeling Techniques and Practical Applications Quiz
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Questions and Answers

Which technique is widely used to represent entities and relationships in data modeling?

  • Super type and subtype method
  • Extended data model (correct)
  • Composition or workflow method
  • Object-oriented data model

What is the grouping type that has multiple attribute values in a single entity called?

  • Inheritance structure
  • Composition
  • Subtype
  • Super type (correct)

What percentage of commonly implemented projects use the super type and subtype method?

  • 70% (correct)
  • 90%
  • 30%
  • 50%

What is the main focus of practical business techniques in data modeling?

<p>Expressing composition or workflow (D)</p> Signup and view all the answers

Which data model has simple entities and relationships only?

<p>Traditional data model (D)</p> Signup and view all the answers

Which data model supplements the shortcomings of the traditional data model and has the strengths of the object-oriented data model?

<p>Extended data model (B)</p> Signup and view all the answers

What is the grouping type that has multiple attribute values in a single entity called?

<p>Super type (A)</p> Signup and view all the answers

What is the main focus of the extended data model in data modeling?

<p>Supplementing the shortcomings of the traditional data model (B)</p> Signup and view all the answers

What is the widely used technique to represent entities and relationships in data modeling?

<p>Object-oriented data model (D)</p> Signup and view all the answers

What percentage of commonly implemented projects use the super type and subtype method?

<p>70% (A)</p> Signup and view all the answers

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