"The following nodes and edges are typically drawn in a UML timing diagram: lifeline, state or condition timeline, destruction event, duration constraint, time constraint. The vector stencils library "UML timing diagrams" contains 15 symbols for the ConceptDraw PRO diagramming and vector drawing software. This example of UML timing diagram symbols for the ConceptDraw PRO diagramming and vector drawing software is included in the ATM UML Diagrams solution from the Software Development area of ConceptDraw Solution Park. There are two basic flavors of timing diagram: the concise notation, and the robust notation." The differences between timing diagram and sequence diagram are the axes are reversed so that the time is increased from left to right and the lifelines are shown in separate compartments arranged vertically. A timing diagram is a special form of a sequence diagram. Timing diagrams are used to explore the behaviors of objects throughout a given period of time. "A timing diagram in the Unified Modeling Language 2.0 is a specific type of interaction diagram, where the focus is on timing constraints. Use it for object-oriented modeling of your bank information system. The example "Design elements - UML timing diagrams" is included in the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.The vector stencils library "Bank UML timing diagram" contains 8 shapes for drawing UML timing diagrams. Typically this graphical association is a small line, e.g., between an occurrence specification and a time interval." Time constraint is shown as graphical association between a time interval and the construct that it constrains. All traces where the constraints are violated are negative traces, i.e., if they occur, the system is considered as failed. The semantics of a time constraint is inherited from constraints. The time interval is time expression used to determine whether the constraint is satisfied. Time constraint is an interval constraint that refers to a time interval. If constraints are violated, traces become negative which means that system is considered as failed.ĭuration constraint is shown as some graphical association between a duration interval and the constructs that it constrains. The semantics of a duration constraint is inherited from constraints. The duration interval is duration used to determine whether the constraint is satisfied. The destruction event is depicted by a cross in the form of an X at the end of a timeline.ĭuration constraint is an interval constraint that refers to a duration interval. Until UML 2.4 it was called destruction event, and earlier - stop. No other occurrence may appear after the destruction event on a given lifeline.Ĭomplete UML name of the occurrence is destruction occurrence specification. It may result in the subsequent destruction of other objects that this object owns by composition. It could be used in scenarios where entities undergo continuous state changes, such as temperature or density.ĭestruction occurrence is a message occurrence which represents the destruction of the instance described by the lifeline. UML also allows the state/ condition dimension be continuous. Timing diagram could show states of the participating classifier or attribute, or some testable conditions, such as a discrete or enumerable value of an attribute. It could be placed inside diagram frame or a "swimlane". Lifeline on the timing diagrams is represented by the name of classifier or the instance it represents. lifelines represent only one interacting entity. Lifeline is a named element which represents an individual participant in the interaction. The vector stencils library "Bank UML timing diagram" contains 8 shapes for drawing UML timing diagrams.
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