Modularity, Coupling, and Cohesion in System Design
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Questions and Answers

Which of the following statements about modularity is true?

  • Modularity refers to integrating all subsystems into a single, unified system.
  • Modularity allows dividing a system into smaller, independent components. (correct)
  • Modularity makes it more difficult to understand and redesign a system.
  • Modularity is a result of coupling subsystems together.

    • What is the relationship between coupling and subsystem independence?

  • Coupling and subsystem independence are unrelated concepts.
  • Coupling increases subsystem independence.
  • Coupling decreases subsystem independence. (correct)
  • Coupling is a measure of subsystem independence.

    • Which of the following best describes cohesion?

  • The extent to which subsystems are coupled or dependent on each other.
  • The extent to which a subsystem performs a single function. (correct)
  • The extent to which a subsystem performs multiple functions.
  • The extent to which a subsystem is modular or decomposed.

    • What is a potential consequence of high coupling between subsystems?

    <p>If one subsystem fails, other dependent subsystems may also fail or have problems functioning.</p> Signup and view all the answers

    Which of the following is true about the principles discussed in the text?

    <p>The principles apply to both general systems and information systems.</p> Signup and view all the answers

    What is the primary advantage of dividing a system into modules?

    <p>It simplifies the system, making it easier to understand and modify.</p> Signup and view all the answers

    Which of the following best describes coupling in the context of systems?

    <p>The degree to which subsystems are interdependent and rely on each other.</p> Signup and view all the answers

    If a subsystem in a highly coupled system fails, what is the likely consequence for other subsystems?

    <p>The other subsystems may fail or have problems functioning.</p> Signup and view all the answers

    Which of the following best describes cohesion in the context of systems?

    <p>The extent to which a subsystem performs a single, well-defined function.</p> Signup and view all the answers

    Which principle is essential for building well-designed information systems?

    <p>Applying the same principles used for general systems to information systems.</p> Signup and view all the answers

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