====== Party Reference ======

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

===== Discussion =====

A Party Reference associates information with an existing [[public:99_annexes:annex-b-terms-and-definitions:p:party|Party]] without copying or replacing the authoritative information describing that Party.

A Party Reference contains or uses sufficient information to distinguish and, when applicable, resolve the referenced Party. This information may include:

  * A Party [[public:99_annexes:annex-b-terms-and-definitions:i:identifier|Identifier]]
  * The identifier scheme
  * The assigning authority
  * The scope within which the Identifier is unique
  * A version or effective date
  * Resolution information

The applicable Information Structure Definition determines which information the Party Reference requires.

A Party Reference remains distinct from a Party Identifier. A Party Identifier supplies a value used to distinguish a Party within a defined scope. A Party Reference uses an Identifier or another resolution mechanism to associate one information structure with the referenced Party.

A Party Reference also remains distinct from the referenced Party. Changing a Party Reference does not change the authoritative Party information unless the applicable operation explicitly modifies that information.

===== Definition =====

> //reference that identifies a [[public:99_annexes:annex-b-terms-and-definitions:p:party|Party]] and permits association with authoritative information about that Party//

===== Source =====

Adapted from:

  * [[https://www.omg.org/spec/Commons/PartiesAndSituations/|OMG Commons Parties and Situations Ontology]]
    * Relevant concepts and relationships: Party, has Party, and is a Party to
    * Retrieved: 2026-10-08
  * [[https://www.omg.org/spec/Commons/Identifiers|OMG Commons Identifiers Ontology]]
    * Relevant concepts and relationships: Identifier, identifies, and is identified by
    * Retrieved: 2026-10-08

The expression //Party Reference// is defined by this corpus. The referenced sources provide the underlying Party and Identifier concepts but do not define a concept having this exact name.

===== Note =====

  * A Party Reference identifies or resolves to one Party within its applicable scope
  * A Party may be the subject of multiple Party References
  * Different Party References may resolve to the same Party
  * A Party Reference does not duplicate the authoritative Party information
  * A Party Reference does not establish the validity, authority, ownership, or legal status of the referenced Party
  * A Party Reference may include an Identifier, identifier scheme, assigning authority, and resolution information
  * The platform-independent definition does not require a URI, database key, object pointer, DDS key, or programming-language reference

===== Example =====

A Person acts on behalf of Example Bank in an FX Trade.

The applicable Role Assignment contains:

  * A Party Reference identifying the Person
  * A Party Reference identifying Example Bank

The two Party References allow a system to distinguish the Person performing the Role from the Party represented by the Person.

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