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UML
Unified Modeling Language.

UNIVERSAL
A quality constraint that allows a resource or resource quality to be set anywhere and anytime in a time/space universe, e.g. a model's universe is the space/time environment where the model is defined.

UNIVERSE
A model space and time context and environment.

UNLIMITED
A quality constraint that allows a resource or resource quality to be set without tangible constraints or limitations.

USE CASE
A typical use of an application or system.

USER
A type of relationfrom a partyresourceto a managed resource. Users are also often defined as "external" resources, in relation to other resources.

UTILITY
A standard business archetype typically represented with a white background.