|Also Known As:||situation|
|Intent:||To represent contexts or situations, and the things that are contextualized.|
|Reusable OWL Building Block:||http://www.ontologydesignpatterns.org/cp/owl/situation.owl (270)|
|Consequences:|| We can contextualize things that have something in common, or are associated: a same place, time, view, causal link, systemic dependence, etc.
We can also reify n-ary relations as situations.
|Scenarios:||The lecture was held in January 1921 by Bela Fleck, with some physicians in the audience making questions, in a very relaxed athmosphere.|
|Examples (OWL files):|
The Situation Content OP locally defines the following ontology elements:
For example, a PlanExecution is a context including some actions executed by agents according to certain parameters and expected tasks to be achieved from a Plan; a DiagnosedSituation is a context of observed entities that is interpreted on the basis of a Diagnosis, etc.
Situation is also able to represent reified n-ary relations, where isSettingFor is the top-level relation for all binary projections of the n-ary relation. If used in a transformation pattern for n-ary relations, the designer should take care of:
- creating only one situation for each instance of an n-ary relation, otherwise the 'identification constraint' (Calvanese et al., IJCAI 2001) could be violated
- adding an 'exact cardinality' restriction corresponding to the arity of the n-ary relation, otherwise the designer would actually represent a polymorphic relation.
(versionInfo): Created by Aldo Gangemi and Valentina Presutti