UML Subsystem Models and Sequence Diagrams
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Questions and Answers

What is the primary purpose of understanding the system context?

  • To design the system architecture
  • To set the system boundaries and establish relationships with the external environment (correct)
  • To develop design models
  • To specify object interfaces
  • What type of model demonstrates the other systems in the environment of the system being developed?

  • System context model (correct)
  • Aggregation model
  • Interaction model
  • Use case model
  • What is used to design the system architecture?

  • Generalisation models
  • System context models
  • Interaction models
  • Information gathered from understanding interactions between the system and its environment (correct)
  • What is the benefit of setting the system boundaries?

    <p>To decide which features are implemented in the system being designed and which are in other associated systems</p> Signup and view all the answers

    What type of model shows how the system interacts with its environment as it is used?

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

    What is the primary focus of a State Machine Model?

    <p>To show how individual objects change their state in response to events.</p> Signup and view all the answers

    What is the result of understanding the relationships between the software being designed and its external environment?

    <p>Deciding how to provide the required system functionality and how to structure the system</p> Signup and view all the answers

    What type of design model shows the logical groupings of objects into coherent subsystems?

    <p>Subsystem Model</p> Signup and view all the answers

    What is the purpose of a system context model?

    <p>To demonstrate the other systems in the environment of the system being developed</p> Signup and view all the answers

    What is the first step in designing a system?

    <p>Defining the context and modes of use of the system</p> Signup and view all the answers

    What is the primary focus of a Sequence Model?

    <p>To show the sequence of object interactions.</p> Signup and view all the answers

    What type of design model describes the dynamic interactions between objects?

    <p>Dynamic Model</p> Signup and view all the answers

    What is an example of a design model that describes the static structure of the system?

    <p>Static Model</p> Signup and view all the answers

    What type of design model is focused on the interactions between actors and the system?

    <p>Use-Case Model</p> Signup and view all the answers

    What type of design model is used to show the part-of relationships between objects?

    <p>Aggregation Model</p> Signup and view all the answers

    What type of design model is used to show the is-a relationships between objects?

    <p>Generalisation Model</p> Signup and view all the answers

    What is the primary purpose of sequence diagrams?

    <p>To represent the sequence of object interactions</p> Signup and view all the answers

    In a sequence diagram, what does a thin rectangle in an object lifeline represent?

    <p>The time when the object is the controlling object in the system</p> Signup and view all the answers

    What type of diagrams are used to show how objects respond to different service requests and the state transitions triggered by these requests?

    <p>State diagrams</p> Signup and view all the answers

    According to the UML, what is used to show the logical organisation of objects in the system?

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

    What is the purpose of interface specification in object-oriented design?

    <p>To allow objects and other components to be designed in parallel</p> Signup and view all the answers

    What type of diagrams are used to model the high-level behavior of a system or an object's run-time behavior?

    <p>State diagrams</p> Signup and view all the answers

    What is the primary purpose of subsystem models?

    <p>To show how the design is organised into logically related groups of objects</p> Signup and view all the answers

    What is used to specify the interface of an object in the UML?

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

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