Kvalitetsfaktorerna

Kvalitetsfaktorerna, also known as the Quality Factors, are a set of six criteria used to evaluate the quality of software. These factors were introduced by McCall, Richards, and Walters in 1977 and have since been widely used in software engineering to assess the overall quality of a software product. The six quality factors are:

1. Correctness: The degree to which a software product meets its specifications and fulfills its intended purpose.

2. Reliability: The degree to which a software product performs its intended functions without failure under stated conditions for a specified period.

3. Efficiency: The degree to which a software product performs its intended functions with the minimum amount of resources, such as time and memory.

4. Integrity: The degree to which a software product protects its data from unauthorized access and modification.

5. Usability: The degree to which a software product is easy to use, understand, and learn.

6. Maintainability: The degree to which a software product can be modified to correct faults, improve performance, or adapt to a changed environment.

Each of these factors can be further broken down into sub-factors, which provide more specific criteria for evaluation. For example, correctness can be evaluated based on factors such as accuracy, completeness, and consistency. The Quality Factors are used by software engineers to identify areas of improvement in a software product and to ensure that it meets the needs of its users. They are also used in the development of software quality models, such as the McCall Quality Model, which provides a framework for evaluating the quality of software products.