Twin Relationship

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A Twin Relationship establishes the semantic relationship between a Twin Identity and the Twin Realizations associated with that identity.

The Twin Relationship identifies the characteristics, information, and conditions relevant to representing the logical twin across its Twin Realizations.

The applicable Configuration specifies the characteristics represented by the relationship and the parameters governing data mapping, source eligibility, source selection, communication, synchronization, and fidelity.

A Twin Relationship remains distinct from the communication mechanisms used to exchange information among Twin Realizations. Technologies such as DDS may realize information exchange within the relationship without defining its semantic meaning.

a semantic relationship between a Twin Identity and its associated Twin Realizations that identifies the characteristics and conditions represented across those realizations

• [DTE1] U.S. Patent Application US20220237111A1, virtual and physical Twin Node concepts and identifiers shared among Twin Nodes
• [DTE2] Non-Traditional BAA Submission, Digital Twin concepts and F17, Twin Nodes Selection
• [DTE9] Distributed Immutable Data Object Reference Architecture (DIDO-RA), Appendix A, Digital Twin
• DIDO-TE normalization of the source concepts

A Twin Relationship does not require every available characteristic of a Twin Realization to participate in the relationship.

The applicable Configuration identifies the characteristics that participate in a particular Twin Relationship.

A communication match, DDS discovery event, Topic match, or Quality of Service match does not, by itself, establish a Twin Relationship.

A Twin Identity has a virtual Twin Realization and a real-world Twin Realization. Their Twin Relationship identifies operational state, selected inputs and outputs, and timing behavior as represented characteristics while excluding unrelated implementation details.