Maintainability

Definition
In engineering, maintainability is the ease with which a product can be maintained 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.