T-V

target

See supplier.

target state

The "to" state within a transition .

template

A descriptor for a model element that has one or more formal parameters that can be used to create a family of related model elements.

terminate

A pseudostate that represents the termination of the execution of a state machine .

test identity action

An action that determines whether two values, specified on separate input pins , refer to the same specified object , and then places True if they do, or False if they don't, on a particular output pin .

time interval

The range between two given time expressions.

time observation action

An action that measures the current time, according to the system clock, during system execution.

time trigger

An event that occurs after a specified period of time.

timing constraint

A constraint on a time interval .

timing diagram

An interaction diagram that describes the behavior of both individual objects and interactions of those objects, focusing attention on the times of occurrence of events that cause changes in state .

token

An entity that controls the flow of data and/or control within an activity .

trace

A dependency within which there is a conceptual connection among elements contained within different models.

transition

A change of an object from one state (the source state ) to another state (the target state ).

trigger

An occurrence of an event .

triggerless transition

A transition that fires unconditionally when the given object is ready to move from one state to another.

usage dependency

A dependency within which the client requires the presence of the supplier for its correct functioning or implementation.

use case

A sequence of actions performed by an actor and the system that yields an observable result, or set of results, of value for one or more actors.

use case instance

A unique execution of a use case .

variable

An element for passing data between actions indirectly.

visibility

A specification of whether something outside of a particular object or package can "see" something inside that object or package.