OOAD Chapter 9: Software Project Estimation
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Questions and Answers

What does LCOM stand for?

  • Large Cohesion of Methods
  • Lack of Coupling in Methods
  • Level of Cohesion in Methods
  • Lack of Cohesion in Methods (correct)

What is the formula for LCOM if |P| > |Q|?

  • LCOM = |P| - |Q| (correct)
  • LCOM = |P| * |Q|
  • LCOM = |P| + |Q|
  • LCOM = |P| / |Q|

What is the relationship between coupling and cohesion?

  • Increase in coupling implies increase in cohesion
  • Decrease in coupling implies decrease in cohesion
  • Decrease in coupling implies increase in cohesion
  • Increase in coupling implies decrease in cohesion (correct)

What is the total number of pairs of methods in a class C with n methods?

<p>n(n-1) (D)</p> Signup and view all the answers

What does a high LCOM value indicate?

<p>The methods are trying to do different things and operate on different data entities (D)</p> Signup and view all the answers

What is the consequence of a high LCOM value?

<p>The class can be partitioned into different classes (A)</p> Signup and view all the answers

What is desirable for modularity?

<p>High cohesion and low LCOM (D)</p> Signup and view all the answers

What is the significance of LCOM in predicting the fault-proneness of a class?

<p>LCOM is not significant (A)</p> Signup and view all the answers

What is the purpose of LCOM?

<p>To measure the cohesion between methods (B)</p> Signup and view all the answers

What is the relationship between LCOM and the number of cohesive methods?

<p>The larger the number of cohesive methods, the lower the LCOM (B)</p> Signup and view all the answers

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