Quality Factors and Criteria

The capability of software to be transferred from one environment to another.

• Portability

• Efficiency

• Accuracy

Capability of the software to adhere to standards or conventions relating to portability.

• Co-existence:

• Conformance

• Replaceability:

Capability of the software to be installed in a specified environment.

• Installability:

• Adaptability

• Portability

Capability of the software product to enable modified software to be validated.

• Changeability

• Testability

• Stability

Capability of the software to provide appropriate response and processing times and throughput rates when performing its function, under stated conditions

• Resource Utilization

• Time Behaviour

• Response Time

The capability of the software to provide the required performance relative to the amount of resources used, under stated conditions

• Effectiveness

• Efficiency

Capability of the software to be understood, learned, used and liked by the user, when used under specified conditions.

• Portability

• Adaptability

• Usability

Capability of the software to maintain a specified level of performance in cases of software faults or of infringement of its specified interface.

• Recoverability

• Maturity

• Fault Tolerance

Capability of the software to avoid failure as a result of faults in the software.

• Maturity

• Fault tolerance

• Recoverability

The capability of the software to maintain the level of performance of the system when used under specified conditions

• Usability

• Adaptability

• Maintainability

• Reliability