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Unit 6 · Software Engineering Paper 2 CS · June 2025

Which of the following belongs to McCall's quality factors?
A. Maintainability
B. Usability
C. Integrity
D. Functionality
Choose the correct answer from the options given below:

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Correct answer: D. A, B and C Only

Explanation

McCall's 11 factors are correctness, reliability, efficiency, integrity, usability (product operation), maintainability, flexibility, testability (product revision), portability, reusability and interoperability (product transition). Functionality is an ISO 9126 characteristic, not a McCall factor.

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