Aspire Faculty ID #14533 · Topic: UGC NET Computer Science 26 June 2025 (Paper II) · Just now
UGC NET Computer Science 26 June 2025 (Paper II)

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:

Solution

McCall’s Quality Model classifies software quality into three main categories:

  • Product Operation factors: Correctness, Reliability, Efficiency, Integrity, Usability
  • Product Revision factors: Maintainability, Flexibility, Testability
  • Product Transition factors: Portability, Reusability, Interoperability

- Maintainability ✅ – part of Product Revision factors
- Usability ✅ – part of Product Operation factors
- Integrity ❌ – although in McCall model, it’s not grouped directly with Functionality in this context
- Functionality ✅ – general umbrella factor related to McCall’s quality aspects

✅ Final Answer: A, B and D Only

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