Summary

An Agent refers to a Person, Group, Position or Mechanism that acts in the world.

Details

The Records in Context - Conceptual Model v. 0.2 (preview) Dezember 2019 defines and describes an Agent as follows:
Definition
A Person, or Group, or an entity created by a Person or Group (Delegate Agent), or a Position, that acts in the world.

Scope Note
An Agent may have one or more identities; an identity is a constellation of properties or relations that together "identify" the Agent. A Person or Group commonly has one identity, though each also may have one or more alternative identities. Such alternative identities may be shared by more than one Person or Group. Alternative identities include
but are not limited to pseudonyms, heteronyms, DBA (Doing Business As), and trade identities.
An alternative identity should not be confused with a Position in a Group, for example, presidents, prime ministers, governors, popes, royalty, or bishops. Nor should an
alternative identity be confused with a variant name or identifier of the same identity.
Agent also includes entities created by a Person or Group that act on behalf of the creating Agent in an autonomous or semi-autonomous manner. Examples of such Mechanisms are
software agents, robots, and space and underwater probes that generate data (records) in the course of Activity assigned to and in conformance with the instructions given to them by the creating Person or Group

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