2.2.3 Universally Unique Identifiers (UUIDs)

To manipulate and exchange data objects independently, each instance of an Energistics data object requires a universally unique identifier (UUID).

Energistics uses UUID standard RFC 4122 from the Internet Engineering Task Force (IETF) (https://tools.ietf.org/html/rfc4122 ).

According to the abstract of the RFC: "This specification defines a Uniform Resource Name namespace for UUIDs (Universally Unique IDentifier), also known as GUIDs (Globally Unique IDentifier). A UUID is 128 bits long, and can guarantee uniqueness across space and time."

For UUIDs, Energistics standards are case-insensitive.

For more information about use of UUIDs by Energistics, see the Energistics Identifier Spec.