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Author Question: A relationship between the instances of one entity type is a: A) unary relationship. B) binary ... (Read 82 times)

rayancarla1

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on: Jul 7, 2018
A relationship between the instances of one entity type is a:
 
  A) unary relationship.
  B) binary relationship.
  C) ternary relationship.
  D) singular occurrence.
  E) partnership occurrence.

Question 2

The extent to which all necessary components of a data-flow diagram have been included and fully described defines:
 
  A) DFD consistency.
  B) DFD completeness.
  C) DFD gap proofing.
  D) DFD flexibility.
  E) DFD cohesion.


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guyanai

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Reply #1 on: Jul 7, 2018
Answer to Question 1

A
Explanation: A) An example of a unary relationship is a customer being referred by another customer. Both customers are from the same entity.
CL

Answer to Question 2

B
Explanation: B) Not only must all necessary elements of a DFD be present, each of the components must be fully described in the project dictionary.
CL


rayancarla1

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Reply #2 on: Jul 7, 2018
TY


guyanai

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Reply #3 on: Jul 7, 2018
Happy to Help


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