====== Twin Realization Identifier ======

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

===== Discussion =====

A Twin Realization Identifier distinguishes one [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_realization|Twin Realization]] from other Twin Realizations associated with the same or different [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_identity|Twin Identities]].

A Twin Realization Identifier identifies a particular realization rather than the logical twin represented by that realization.

The [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_identifier|Twin Identifier]] identifies the Twin Identity. The Twin Realization Identifier identifies an individual realization associated with that Twin Identity.

The Twin Realization Identifier remains independent of implementation-specific identifiers such as container identifiers, process identifiers, host names, network addresses, DDS entity identifiers, or other resource identifiers.

===== Definition =====

//an identifier assigned to an individual [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_realization|Twin Realization]]//

===== Source =====

  * [[dido:03-dido-te:99-annexes:annex-b-references:dte-001|[DTE1] U.S. Patent Application US20220237111A1]], virtual and physical Twin Node concepts
  * [[dido:03-dido-te:99-annexes:annex-b-references:dte-002|[DTE2] Non-Traditional BAA Submission]], F17, //Twin Nodes Selection//
  * DIDO-TE normalization of the Twin Identity and Twin Realization concepts

===== Note =====

A Twin Realization Identifier identifies one realization and does not replace the [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_identifier|Twin Identifier]] associated with the logical twin.

Multiple Twin Realizations associated with the same Twin Identity have distinct Twin Realization Identifiers while referencing the same Twin Identifier.

A change to an implementation-specific resource identifier does not, by itself, require a change to the Twin Realization Identifier.

===== Example =====

A Twin Identity with Twin Identifier ''T-4711'' has two Twin Realizations:

  * Virtual realization ''TR-101''
  * Real-world realization ''TR-102''

Both realizations reference ''T-4711'', while ''TR-101'' and ''TR-102'' distinguish the individual realizations.

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