Difference between revisions of "State"
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|Subclass Of=Geo:Feature | |Subclass Of=Geo:Feature | ||
|Description=A state specifies some snapshot of objects in the domain as they exist at some point in time. | |Description=A state specifies some snapshot of objects in the domain as they exist at some point in time. | ||
| + | States have the following core set of properties: | ||
| + | o hasStatus: identifies the StateStatus at some point or interval in time. For example, the state may be “unsatisfied, “satisfied” or “completed”. | ||
| + | o achievedAt: identifies the time Interval or Instant during which the state was satisfied. | ||
| + | o scheduledFor: identifies a time Interval during which the state is scheduled to be realized. | ||
| + | o effectOf: identifies an Activity that the state was realized by. | ||
| + | o preconditionOf: identifies an Activity requires the state to be realized in order to occur. | ||
| + | A State may also be described with the following, supplemental properties: | ||
| + | o enables: identifies an Activity that in some (indirect) way was enabled by the state. The enables property is the inverse of the enabledBy property and is a generalization (super-property) of the preconditionOf property. | ||
| + | o causedBy: identifies an Activity that in some (indirect) way caused the state to be realized. The causedBy property is the inverse of the causes property and is a generalization (super-property) of the effectOf property. | ||
|Class Diagram Description=An activity cluster provides a basic structure for representing activity specifications. Illustrated in Figure 1, it consists of an activity connected to an enabling and caused state, each of which may be a state tree that defines complex states via decomposition into conjunctions and disjunctions of states. | |Class Diagram Description=An activity cluster provides a basic structure for representing activity specifications. Illustrated in Figure 1, it consists of an activity connected to an enabling and caused state, each of which may be a state tree that defines complex states via decomposition into conjunctions and disjunctions of states. | ||
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|Property=PreconditionOf | |Property=PreconditionOf | ||
|Restriction=only | |Restriction=only | ||
| − | |Value=Activity | + | |Value=ISO5087-1:Activity |
}}{{Manchester Row | }}{{Manchester Row | ||
|Property=Enables | |Property=Enables | ||
|Restriction=only | |Restriction=only | ||
| − | |Value=Activity | + | |Value=ISO5087-1:Activity |
}}{{Manchester Row | }}{{Manchester Row | ||
|Property=EffectOf | |Property=EffectOf | ||
|Restriction=only | |Restriction=only | ||
| − | |Value=Activity | + | |Value=ISO5087-1:Activity |
}}{{Manchester Row | }}{{Manchester Row | ||
|Property=CausedBy | |Property=CausedBy | ||
|Restriction=only | |Restriction=only | ||
| − | |Value=Activity | + | |Value=ISO5087-1:Activity |
}}{{Manchester Row | }}{{Manchester Row | ||
|Property=ScheduledFor | |Property=ScheduledFor | ||
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{{Supplementary Figures | {{Supplementary Figures | ||
|Figure Row={{Figure Row | |Figure Row={{Figure Row | ||
| − | |Figure=Act-1.png | + | |Figure=Act-1.png |
|Caption=Figure 1: A generic activity cluster. | |Caption=Figure 1: A generic activity cluster. | ||
}}{{Figure Row | }}{{Figure Row | ||
| − | |Figure=Act-2.png | + | |Figure=Act-2.png |
|Caption=Figure 2: Example use of the Activity Ontology. | |Caption=Figure 2: Example use of the Activity Ontology. | ||
}} | }} | ||
}} | }} | ||
Latest revision as of 02:04, 16 December 2022
Pattern
This class has been associated with the following pattern:
Subclass Of
Description
An English description of the definition (what distinguishes this sense of the term?).
A state specifies some snapshot of objects in the domain as they exist at some point in time. States have the following core set of properties: o hasStatus: identifies the StateStatus at some point or interval in time. For example, the state may be “unsatisfied, “satisfied” or “completed”. o achievedAt: identifies the time Interval or Instant during which the state was satisfied. o scheduledFor: identifies a time Interval during which the state is scheduled to be realized. o effectOf: identifies an Activity that the state was realized by. o preconditionOf: identifies an Activity requires the state to be realized in order to occur. A State may also be described with the following, supplemental properties: o enables: identifies an Activity that in some (indirect) way was enabled by the state. The enables property is the inverse of the enabledBy property and is a generalization (super-property) of the preconditionOf property. o causedBy: identifies an Activity that in some (indirect) way caused the state to be realized. The causedBy property is the inverse of the causes property and is a generalization (super-property) of the effectOf property.
Class Diagram Description
An activity cluster provides a basic structure for representing activity specifications. Illustrated in Figure 1, it consists of an activity connected to an enabling and caused state, each of which may be a state tree that defines complex states via decomposition into conjunctions and disjunctions of states.
Figure 2 illustrates the use of the Activity Ontology to describe a class of objects that should be identified as “Drive to Work” activities, where the effect of such an activity is a Conjunctive state. The conjunctive state is decomposed into two terminal states, meaning that it should be interpreted as a state where both sub-states (DriverAtWork and CarAtWork) are true.
Required by Use Case(s)
(why is this specialized definition needed?)
CDM References
What other classes or properties reference this term?
- ISO5087-1:Activity (← links)
- TerminalState (← links)
- NonTerminalState (← links)
- RecurringEvent (← links)
- ISO5087-1:Allocation (← links)
- Goal (← links)
- Pattern:Activity Pattern (← links)
Interface Specification References
This class has been associated with the following interface specification items:
Sources
Sources considered when developing the class:
Status
Pending Approval
Has Subclass(es)
Annotations
| Annotation | Value |
|---|
Manchester Syntax Specification
| Property | Restriction | Value |
|---|---|---|
| PreconditionOf | only | ISO5087-1:Activity |
| Enables | only | ISO5087-1:Activity |
| EffectOf | only | ISO5087-1:Activity |
| CausedBy | only | ISO5087-1:Activity |
| ScheduledFor | max 1 | TemporalEntity |
| HasStatus | exactly 1 | StateStatus |
Supplementary Figures
| Figure | Caption |
|---|---|
| Figure 1: A generic activity cluster. | |
| Figure 2: Example use of the Activity Ontology. |
