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Author Question: A key can be redundant. Indicate whether the statement is true or ... (Read 45 times)

geodog55

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on: Jul 7, 2018
A key can be redundant.
 
  Indicate whether the statement is true or false

Question 2

Which of the following is a method for representing human-computer dialogues?
 
  A) Logic modeling
  B) Sequence modeling
  C) Process modeling
  D) Dialogue diagramming
  E) Transition diagramming


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at

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

FALSE
Explanation: Because a primary key uniquely identifies a row, it must not be redundant. It must be unique.
CL

Answer to Question 2

D
Explanation: D) Dialogue diagramming is a formal method for designing and representing human-computer dialogues using box-and-line diagrams.
CL


geodog55

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Reply 2 on: Jul 7, 2018
YES! Correct, THANKS for helping me on my review

lindahyatt42

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Reply 3 on: Yesterday
Excellent

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