In software testing
, based on the definition given in ISO 9126
, the ease with which a software product can be modified in order to:
- correct defects
- meet new requirements
- make future maintenance easier, or
- cope with a changed environment
In telecommunication and several other engineering fields, the term maintainability has the following meanings:
- A characteristic of design and installation, expressed as the probability that an item will be retained in or restored to a specified condition within a given period of time, when the maintenance is performed in accordance with prescribed procedures and resources.
- The ease with which maintenance of a functional unit can be performed in accordance with prescribed requirements.
- Blanchard S. B., Maintainability: A Key to Effective Serviceability and Maintenance Management, John Wiley & Sons Inc., NewYork 1995
- Ebeling C. E., An Introduction to Reliability and Maintainability Engineering, McGraw-Hill Companies, Inc., Boston 1997.
- Patton J. D., Maintanability and Maintenance Management, Instrument Society of America, Research Triangle Park, North Carolina 1988.