====== Change Authorization ======

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

===== Discussion =====

A Change Authorization is a decision by an [[public:99_annexes:annex-b-terms-and-definitions:a:authority|Authority]] that permits a specified [[public:99_annexes:annex-b-terms-and-definitions:c:change|Change]] under stated conditions.

A Change Authorization may identify:

  * The authorized Change
  * The entity that may be changed
  * The permitted alterations
  * The applicable [[public:99_annexes:annex-b-terms-and-definitions:b:baseline|Baseline]]
  * The effective period
  * The responsible actors or roles
  * Required verification and regression testing
  * Applicable [[public:99_annexes:annex-b-terms-and-definitions:r:requirement|Requirements]]
  * Applicable [[public:99_annexes:annex-b-terms-and-definitions:p:policy|Policies]]
  * Applicable [[public:99_annexes:annex-b-terms-and-definitions:c:constraint|Constraints]]
  * Conditions, limitations, or exceptions

A Change Authorization may permit a Change without requiring that the Change be implemented. An authorized Change may subsequently be deferred, canceled, superseded, or allowed to expire.

===== Definition =====

//decision by an authority permitting a specified change under stated conditions//

===== Source =====

Dido Solutions, Inc. and Jackrabbit Consulting, Inc., derived from the change-control and configuration-management concepts in ISO/IEC/IEEE 12207:2017 and ISO 10007:2017

===== Note =====

A Change Authorization is issued by an Authority. DIDO-TE may record, validate, and enforce the authorization but does not invent the authorization or silently substitute another Authority.

The stated conditions establish the scope within which the Change is permitted. A separate “Authorized Change Scope” term is unnecessary because that scope is part of the Change Authorization.

A Change Authorization should remain distinguishable from:

  * A proposed Change
  * A request for authorization
  * An implemented Change
  * A verification result
  * A [[public:99_annexes:annex-b-terms-and-definitions:m:maintenance_outcome|Maintenance Outcome]]

Conflicting Change Authorizations are recorded and surfaced without DIDO-TE inventing precedence. The appropriate Community of Interest or designated Authority resolves the conflict.

===== Example =====

An Authority permits replacement of an identified [[public:99_annexes:annex-b-terms-and-definitions:t:test_executable|Test Executable]] in a specified Baseline, requires regression testing, and limits the authorization to a stated release window. That decision is the Change Authorization.

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