A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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 relation from a party resource to 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.