Fill in the blanks in this sentence:

It is desirable for an ADT (and indeed any code module) to have high cohesion and low coupling to other modules.

Question

Fill in the blanks in this sentence:

It is desirable for an ADT (and indeed any code module) to have high cohesion and low coupling to other modules.

BlackTom AI · Accepted Answer

The question asks to fill in two blanks in the statement about an ADT (and code modules) having desirable properties.

First blank consideration: What level of cohesion is desirable for an ADT?
- The conventional design principle is that modules should exhibit high cohesion, meaning their responsibilities are closely related and the module does one thing well. High cohesion makes the module easier to understand, maintain, and reuse, and reduces internal coupling.
- Choosing 'low' for cohesion would imply the module handles many unrelated responsibilities, which tends to make it harder to maintain and reason about, increasing complexity and the chance of changes introducing bugs. Therefore, high cohesion is the correct choice for the first blank.

Second blank consideration: What level of coupling to other modules is desirable for an ADT?
- The standard goal is low coupling, meaning modules depend as little as possible on the internals of other modules. This makes the system more modular, easier to test, modify, and replace components without ripple effects.
- Opting for 'high' coupling would mean the module is highly dependent on others, leading to fragile designs where changes in one module force changes in many others, reducing flexibility and reusability. Thus, low coupling is the correct choice for the second blank.

Putting it together, the intended sentence reads that it is desirable for an ADT to have high cohesion and low coupling to other modules. This aligns with foundational software engineering principles that favor focused responsibilities (high cohesion) and modular, independent interaction (low coupling).

Note: Since no alternative options were provided in the prompt, this reasoning treats the standard interpretations of cohesion and coupling as the basis for selecting the customary values.

XLMC0202501 Topic 7 Quiz

Fill in the blanks in this sentence: It is desirable for an ADT (and indeed any code module) to have high cohesion and low coupling to other modules.

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