Class UML 2.3::DurationObservation
Description:
A duration observation is a reference to a duration during an execution.
It points out the element(s) in the model to observe and whether the observations
are when this model element is entered or when it is exited.
Direct Superclasses: ObservationDirect Subclasses: Class Precedence List: DurationObservation,
Observation,
PackageableElement,
ParameterableElement,
NamedElement,
ElementProperties:
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event :
NamedElement (1 2); -- source
DurationObservation The observation is determined by the entering or exiting of the event element
during execution.
![](/se-interop/image/right-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
firstEvent : Boolean (0 2); -- source
DurationObservation The value of firstEvent[i] is related to event[i] (where i is 1 or 2).
If firstEvent[i] is true, then the corresponding observation event is the
first time instant the execution enters event[i]. If firstEvent[i] is false,
then the corresponding observation event is the time instant the execution
exits event[i]. Default value is true applied when event[i] refers an element
that represents only one time instant.
Default value: TRUE
![](/se-interop/image/right-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
visibility :
VisibilityKind (1 1); -- source
PackageableElement Indicates that packageable elements must always have a visibility, i.e.,
visibility is not optional.
Redefines: NamedElement.visibility
Default value: PUBLIC
![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
owningTemplateParameter :
TemplateParameter (0 1); -- source
ParameterableElement![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
templateParameter :
TemplateParameter (0 1); -- source
ParameterableElement![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
clientDependency :
Dependency (0 *); -- source
NamedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
name : String (0 1); -- source
NamedElement![](/se-interop/image/right-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
nameExpression :
StringExpression (0 1); -- source
NamedElement The string expression used to define the name of this named element.
{
composite}
Subsets: Element.ownedElement
![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
namespace :
Namespace (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
qualifiedName : String (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
ownedComment :
Comment (0 *); -- source
Element![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
ownedElement :
Element (0 *); -- source
Element![](/se-interop/image/down-arrow.png?hunchentoot-session=79310%3ADB35C96892FF65E16D1ACF2624DE3AA2)
owner :
Element (0 1); -- source
ElementConstraints:
Signature: first_event_multiplicity() : Boolean;
Description: The multiplicity of firstEvent must be 2 if the multiplicity of event is
2. Otherwise the multiplicity of firstEvent is 0.
The OCL used here is not normative.Editor's notes: Added endif.
Expression: if (event->size() = 2)
then (firstEvent->size() = 2) else (firstEvent->size() = 0) endif
Original: if (event->size() = 2)
then (firstEvent->size() = 2) else (firstEvent->size() = 0)
Operations:
No additional operations.
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