17 Questions
What happens to the changeability of a software system when the number of children (NOC) increases?
It increases
Which of the following is a desirable goal in software design?
Reduce coupling between classes
What does the CBC (Coupling between Classes) metric measure?
The total number of other classes to which the class is coupled
What is the effect of increasing coupling between classes on modularity?
It decreases modularity
What happens to the reliability of a software system when the number of children (NOC) increases?
It increases
What is the primary characteristic of a class with a low CBC value?
It is self-contained with minimal relationships to other classes.
What does a high CBC value typically indicate about a class?
It is tightly coupled to other classes, making it difficult to test and modify.
What is the primary factor that affects the fault-proneness of classes?
Coupling between classes.
What is the relationship between two methods of a class C that makes them cohesive?
They access the same instance variables.
What is the range of CBC values that indicate a class is tightly coupled?
>4
What is the term for the phenomenon where a class has a high degree of cohesion among its methods?
Lack of Cohesion in Methods (LCOM)
What is the relationship between the depth of inheritance tree (DIT) and defect-proneness of a class?
The higher the DIT, the higher is the probability that the class is defect-prone
What does the number of children (NOC) metric value of a class C represent?
The number of immediate subclasses of C
What is the trend observed in the empirical observations regarding NOC metric value?
Most classes have a small NOC value
What is the relationship between NOC and defect detection probability?
The higher the NOC, the lower the probability of detecting defects
What is the significance of a high DIT value?
It indicates a high probability of defect-proneness
What is the implication of a class having a high NOC value?
The class has a high degree of reuse
This quiz covers software engineering concepts, including object-oriented analysis and design (OOAD), software project estimation, and attributes of a software system such as modularity, reliability, and maintainability. Assess your knowledge of these fundamental concepts in software development.
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