# Graphical representation
__Diagram__
[](../Image/Situation.jpg.md "Image:Situation.jpg")
# General description
| | |
| --- | --- |
| Name: | Situation |
| Submitted by: | [AldoGangemi](../User/AldoGangemi.md "User:AldoGangemi") |
| Also Known As: | situation |
| Intent: | To represent contexts or situations, and the things that are contextualized. |
| Domains: | [General](../Community/General.md "Community:General") |
| Competency Questions: | What is the context or situation of something? What are the things present in this context or situation? |
| Solution description: | - |
| Reusable OWL Building Block: | [http://www.ontologydesignpatterns.org/cp/owl/situation.owl](http://ontologydesignpatterns.org/wiki/index.php?title=Special:ClickHandler&link=http://www.ontologydesignpatterns.org/cp/owl/situation.owl&message=OWL building block&from_page_id=110&update=) (1046) |
| 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. |
| Known Uses: | |
| Web References: | |
| Other References: | |
| Examples (OWL files): | |
| Extracted From: | http://www.ontologydesignpatterns.org/ont/dul/DUL.owl |
| Reengineered From: | |
| Has Components: | |
| Specialization Of: | |
| Related CPs: | |
# Elements
_The __Situation__ Content OP locally defines the following ontology elements:_
[](../Image/ObjectProperty.gif.md "ObjectProperty") __hasSetting__ (owl:ObjectProperty) A relation between entities and situations, e.g. 'this morning I've prepared my coffee with a new fantastic Arabica' (i.e.: (an amount of) a new fantastic Arabica hasSetting the preparation of my coffee this morning).
[](../Image/ArrowRight.gif.md "ArrowRight.gif") _[hasSetting](./Situation/hasSetting.md "Submissions:Situation/hasSetting") page_
[](../Image/ObjectProperty.gif.md "ObjectProperty") __isSettingFor__ (owl:ObjectProperty)
[](../Image/ArrowRight.gif.md "ArrowRight.gif") _[isSettingFor](./Situation/isSettingFor.md "Submissions:Situation/isSettingFor") page_
[](../Image/Class.gif.md "Class") __Situation__ (owl:Class) A view on a set of entities. It can be seen as a 'relational context', reifying a relation.
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.
[](../Image/ArrowRight.gif.md "ArrowRight.gif") _[Situation](../DescriptionAndSituation/DescriptionAndSituation.md "Submissions:Situation/Situation") page_
# Additional information
(type): [http://www.w3.org/2002/07/owl#Ontology](http://www.w3.org/2002/07/owl#Ontology "http://www.w3.org/2002/07/owl#Ontology")
(versionInfo): Created by Aldo Gangemi and Valentina Presutti
(imports): [http://www.ontologydesignpatterns.org/schemas/cpannotationschema.owl](http://www.ontologydesignpatterns.org/schemas/cpannotationschema.owl "http://www.ontologydesignpatterns.org/schemas/cpannotationschema.owl")
# Scenarios
__Scenarios about Situation__
* I prepared a coffee with my heater, 300 ml of water, and an Arabica coffee mix. [>>>](./AgentRole/Scenario_1.md "http://ontologydesignpatterns.org/wiki/Submissions:Situation/Scenario_1")
# Reviews
__Reviews about Situation__
There is no review about this proposal.
This revision (revision ID __9122__) takes in account the reviews: none
Other info at [evaluation tab](http://ontologydesignpatterns.org/wiki/index.php?title=Submissions:Situation&action=evaluation "http://ontologydesignpatterns.org/wiki/index.php?title=Submissions:Situation&action=evaluation")
# Modeling issues
__Modeling issues about Situation__
| Modeling issue | [Competency question](../Property/CompetencyQuestion.md "Property:CompetencyQuestion") | [Domains](../Property/Domain.md "Property:Domain") |
| --- | --- | --- |
| [Situation classification](../Community/Situation_classification.md "Community:Situation classification") | What situations satisfy a certain description? What descriptions can be (partly) satisfied by that situation? What situations (partly) satisfying a certain description can emerge out of this dataset? | |
# References