Maintainability Criterion [Dido Solutions, Inc Wiki]

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====== Maintainability Criterion ======

[[public:99_annexes:annex-b-terms-and-definitions:start|Go to Terms and Definitions]]

===== Discussion =====

A Maintainability Criterion establishes a measurable condition used to evaluate the [[public:99_annexes:annex-b-terms-and-definitions:m:maintainability|Maintainability]] of an entity.

A Maintainability Criterion may specify:

  * A threshold
  * A tolerance
  * An acceptable range
  * A required property
  * A permitted maintenance duration
  * A maximum change effort
  * A dependency-visibility condition
  * A change-isolation condition
  * A verification or regression-testing condition

The applicable Maintainability Criteria may originate from a [[public:99_annexes:annex-b-terms-and-definitions:r:requirement|Requirement]], [[public:99_annexes:annex-b-terms-and-definitions:p:policy|Policy]], [[public:99_annexes:annex-b-terms-and-definitions:c:constraint|Constraint]], profile, [[public:99_annexes:annex-b-terms-and-definitions:b:baseline|Baseline]], or designated [[public:99_annexes:annex-b-terms-and-definitions:a:authority|Authority]].

===== Definition =====

//measurable condition used to determine whether the maintainability of an entity satisfies a specified requirement//

===== Source =====

Dido Solutions, Inc. and Jackrabbit Consulting, Inc., derived from the maintainability concepts in ISO/IEC 25010:2023

===== Note =====

A Maintainability Criterion states the condition used for evaluation. It does not state the measured or observed result of that evaluation.

A criterion may address modularity, reusability, analyzability, modifiability, testability, or another governed maintainability characteristic.

When applicable Maintainability Criteria conflict, DIDO-TE records and surfaces the conflict without inventing precedence. The appropriate Community of Interest or designated Authority resolves the conflict.

===== Example =====

A requirement that an authorized configuration change be implemented and regression tested within four hours establishes a Maintainability Criterion containing a maximum maintenance duration and a verification condition.

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