Solution

The correct answer is A, B, and C Only

Key Points

• Maintainability: ✅ Maintainability is one of McCall's software quality factors. It refers to the ease with which software can be modified to fix defects, improve performance, or adapt to a changing environment.
• Usability: ✅ Usability is another McCall's quality factor. It measures how easy and user-friendly the software is for end users.
• Integrity: ✅ Integrity is part of McCall's quality factors. It refers to the software's ability to protect against unauthorized access and ensure data security.
• Functionality: ❌ Although important, functionality is not explicitly mentioned as part of McCall's 11 quality factors. McCall's model focuses on other aspects such as maintainability, usability, and integrity.

Additional Information

• McCall's Quality Factors: McCall's model identifies 11 factors grouped into three categories: product operation, product revision, and product transition.
• Examples of Quality Factors: These include maintainability, usability, integrity, reliability, and efficiency, among others.
• Purpose: McCall's quality factors provide a framework for assessing and improving software quality from different perspectives.

Hence, the correct answer is: option 4) A, B, and C Only