Concept	Documentation
General Physical Role	General concept of usage of system elements in the context of other system elements on physical level.
Hardware Element Role	Specifies the fact that a hardware structure comprises hardware elements.
Software Element	Pure Software Elements. Similarity with the V-Model "software unit".
Software Element Role	Specifies the fact that a software structure comprises software elements.
Physical Software Role	Specifies the fact that a physical structure comprises software elements.
Physical Element Role	Specifies the fact that a physical structure comprises physical elements.
Physical Hardware Role	Specifies the fact that a physical structure comprises hardware elements.
Physical Element	A composition of Hardware and Software Elements. Similarity with the V-Model segments and system. See [VXT].
Hardware Element	Pure Hardware Elements. Similarity with the V-Model "hardware unit".
Physical Internal Interaction Scenario	Ordered sequence of exchanges of information, energy, or material between Physical Internal Interaction Scenario Participants.
Physical Internal Scenario Participation	Specifies the fact that a General Physical Role participates in a Physical Internal Interaction Scenario.
Physical Internal Chronological Message	Ordered sequential occurrence of exchanges between Physical Internal Interaction Scenario Participants.