Which of the following features are taken to measure the quality of a software?

The quality of a software can be measured by considering the following features:

1. Functionality: This refers to the ability of the software to perform its intended functions. It includes aspects such as the accuracy of the software, its interoperability with other systems, compliance with standards, and suitability for the intended task.

2. Reliability: This refers to the ability of the software to perform consistently under specified conditions. It includes aspects such as maturity (the frequency of failure), fault tolerance (the ability to continue functioning in the event of a failure), and recoverability (the ability to recover from a failure).

3. Usability: This refers to the ease with which users can use the software. It includes aspects such as understandability, learnability, and operability.

4. Efficiency: This refers to the performance of the software relative to the amount of resources used. It includes aspects such as time behavior (the response and processing times) and resource behavior (the amount of resources used).

5. Maintainability: This refers to the ease with which the software can be modified to correct faults, improve performance, or adapt to a changed environment. It includes aspects such as analyzability, changeability, stability, and testability.

6. Portability: This refers to the ease with which the software can be transferred from one environment to another. It includes aspects such as adaptability, installability, co-existence, and replaceability.