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:

event :
NamedElement (1 2); -- source
DurationObservation
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

visibility :
VisibilityKind (1 1); -- source
PackageableElement
owningTemplateParameter :
TemplateParameter (0 1); -- source
ParameterableElement
templateParameter :
TemplateParameter (0 1); -- source
ParameterableElement
clientDependency :
Dependency (0 *); -- source
NamedElement
name : String (0 1); -- source
NamedElement
nameExpression :
StringExpression (0 1); -- source
NamedElement
namespace :
Namespace (0 1); -- source
NamedElement
qualifiedName : String (0 1); -- source
NamedElement
ownedComment :
Comment (0 *); -- source
Element
ownedElement :
Element (0 *); -- source
Element
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.
Send questions or comments to
xmi-interop@omg.org.