Maintainability: Difference between revisions
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* 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 [[repair and maintenance|maintenance]] is performed by prescribed procedures and resources. | * 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 [[repair and maintenance|maintenance]] is performed by prescribed procedures and resources. | ||
* The ease with which maintenance of a [[functional unit]] can be performed by prescribed requirements. | * The ease with which maintenance of a [[functional unit]] can be performed by prescribed requirements. | ||
{{FS1037C MS188}} | |||
=== Software === | === Software === | ||
{{main|Software_maintenance#Maintainability}} | |||
In [[software engineering]], these activities are known as [[software maintenance]] (cf. [[ISO/IEC 9126]]). Closely related concepts in the software engineering domain are evolvability, modifiability, [[technical debt]], and [[code smell]]s. | In [[software engineering]], these activities are known as [[software maintenance]] (cf. [[ISO/IEC 9126]]). Closely related concepts in the software engineering domain are evolvability, modifiability, [[technical debt]], and [[code smell]]s. | ||
==See also== | ==See also== | ||
Latest revision as of 20:55, 4 June 2025
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Maintainability is the ease of maintaining or providing maintenance for a functioning product or service. Depending on the field, it can have slightly different meanings.
Usage in different fields
Engineering
In engineering, maintainability is the ease with which a product can be maintained to:
- correct defects or their cause,
- Repair or replace faulty or worn-out components without having to replace still working parts,
- prevent unexpected working conditions,
- maximize a product's useful life,
- maximize efficiency, reliability, and safety,
- meet new requirements,
- make future maintenance easier, or
- cope with a changing environment.
In some cases, maintainability involves a system of continuous improvement - learning from the past to improve the ability to maintain systems, or improve the reliability of systems based on maintenance experience.
Telecommunication
In telecommunications 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 by prescribed procedures and resources.
- The ease with which maintenance of a functional unit can be performed by prescribed requirements.
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Software
Script error: No such module "Labelled list hatnote". In software engineering, these activities are known as software maintenance (cf. ISO/IEC 9126). Closely related concepts in the software engineering domain are evolvability, modifiability, technical debt, and code smells.
See also
- List of system quality attributes
- Maintenance (technical)
- Supportability (disambiguation)
- Serviceability (disambiguation)
- Software sizing
- RAMS
- Throwaway society
References
Further reading
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External links
- Calculation, Field testing and history of Maintainability Index (MI) (with references)
- Measurement of Maintainability Index (MI)
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