Test Your Understanding of CRUDE Matrix and CRC Cards in Object-Oriented Design
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Questions and Answers

Which of the following must be associated with instances of classes on a class diagram and with a CRC card that represents the class of the instance?

  • Sequence diagrams
  • CRUDE matrix
  • Behavioral state machines (correct)
  • Communication diagrams

    • What must be associated with responsibilities and associations on CRC cards and operations in classes and associations connected to the classes on class diagrams?

  • Cell entries on a CRUDE matrix
  • Messages on sequence and communication diagrams (correct)
  • Transitions on behavioral state machines
  • All of the above

    • What should an analyst do if there is an object on the communication and sequence diagrams associated with a class that did not exist on the class diagram?

  • None of the above
  • Rethink the communication and sequence diagrams
  • Both A and B
  • Modify the class diagram by adding these classes (correct)

    • What must objects that appear in a CRUDE matrix be associated with?

    <p>Classes represented by CRC cards and appear on the class diagram</p> Signup and view all the answers

    What must the states in a behavioral state machine be associated with?

    <p>Different values of an attribute or set of attributes that describe an object</p> Signup and view all the answers

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