ECE 5010 Sequence Diagrams
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Questions and Answers

What type of diagrams are commonly used to illustrate the structure of a system in UML?

  • State machine and activity diagrams
  • Activity and state machine diagrams
  • Use case and sequence diagrams
  • Class and sequence diagrams (correct)

    • In UML, which diagrams are typically used to represent the interaction between different parts of a system?

  • Use case and class diagrams
  • State machine and activity diagrams
  • Sequence and communication diagrams (correct)
  • Sequence and state machine diagrams

    • Which type of diagram in UML is used to model the behavior of a system based on the changes in its states?

  • Sequence diagram
  • Class diagram
  • Activity diagram (correct)
  • Communication diagram

    • What UML diagram is commonly used to represent the flow of control from one activity to another within a system?

    <p>Activity diagram</p> Signup and view all the answers

    Which type of UML diagram is utilized to model the behavior of discrete entities by specifying different states and transitions?

    <p>State machine diagram</p> Signup and view all the answers

    What is UML primarily used for according to the text?

    <p>Describing software systems</p> Signup and view all the answers

    Which term best describes UML based on the text?

    <p>Semi-formal</p> Signup and view all the answers

    What are the parts of a class in UML according to the text?

    <p>Name, attributes, operations, and destructors</p> Signup and view all the answers

    In C#, what is the UML terminology that corresponds to a class?

    <p>Class</p> Signup and view all the answers

    What aspect of UML is highlighted by the statement 'Create diagrams only for important classes and interactions'?

    <p>Structure modeling</p> Signup and view all the answers

    Which way of using UML involves creating interfaces for all subsystems specified but not implementation?

    <p>UML as blueprint</p> Signup and view all the answers

    Which type of fragment is used to model alternative sequences in a sequence diagram?

    <p>Alt fragment</p> Signup and view all the answers

    What does the head of a lifeline in a sequence diagram represent?

    <p>Sender of a message</p> Signup and view all the answers

    In a sequence diagram, what does a continuous bar execution specification represent?

    <p>Synchronous message</p> Signup and view all the answers

    What notation is used to depict object destruction in a sequence diagram?

    <p>Large cross (×)</p> Signup and view all the answers

    Which type of message in a sequence diagram indicates that the sender waits for a response before continuing?

    <p>Synchronous message</p> Signup and view all the answers

    In UML sequence diagrams, what do lifelines represent?

    <p>Interaction partners</p> Signup and view all the answers

    What is the purpose of alt fragments in a sequence diagram?

    <p>To model alternative sequences</p> Signup and view all the answers

    What does an opt fragment represent in a sequence diagram?

    <p>A conditional optional interaction</p> Signup and view all the answers

    What is the purpose of loop fragments in a sequence diagram?

    <p>To depict repeated interactions</p> Signup and view all the answers

    What does the body of a lifeline represent in a sequence diagram?

    <p>Lifetime of the object</p> Signup and view all the answers

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