Editing Maintainability (section)

=== Software ===
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.

The maintainability index is calculated with certain formulae from [[Lines of code|lines-of-code measures]], [[McCabe Measure|McCabe measures]] and [[Halstead complexity measures]].

The measurement and tracking of maintainability are intended to help reduce or reverse a system's tendency toward "code entropy" or degraded integrity, and to indicate when it becomes cheaper and/or less risky to rewrite the code than it is to change it.

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