Below are some dimensions of quality:
- Accessibility:The degree to which software can be used comfortably by a wide variety of people, including those who require assistive technologies like screen magnifiers or voice recognition.
- Compatibility:The suitability of software for use in different environments like different Operating Systems, Browsers, etc.
- Concurrency:The ability of software to service multiple requests to the same resources at the same time.
- Efficiency:The ability of software to perform well or achieve a result without wasted energy, resources, effort, time or money.
- Functionality: The ability of software to carry out the functions as specified or desired.
- Installability:The ability of software to be installed inspecified environment.
- Localizability:The ability of software to be used in different languages, time zones etc.
- Maintainability:The ease with which software can be modified (adding features, enhancing features, fixing bugs, etc)
- Performance:The speed at which software performs under a particular load.
- Portability:The ability of software to be transferred easily from one location to another.
- Reliability:The ability of software to perform a required function under stated conditions for stated period of time without any errors.
- Scalability:The measure of software’s ability to increase or decrease in performance in response to changes in software’s processing demands.
- Security:The extent of protection of software against unauthorized access, invasion of privacy, theft, loss of data, etc.
- Testability:The ability of software to be easily tested.
- Usability:The degree of software’s ease of use.
When someone says “This software is of a very high quality.”, you might want to ask “In which dimension of quality?”