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. (A)</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. (B)</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. (C)</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. (C)</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. (D)</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. (B)</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. (A)</p> Signup and view all the answers

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