Service-Oriented Architecture Ontology Version 2.0 – Class Relationship Matrix

This appendix contains a class relationship matrix that illustrates the class-to-class relationships intrinsic in the OWL definitions of the SOA ontology. The matrix is deterministically derived from the OWL ontology definitions. Each row X and each column Y corresponds to an OWL class. A relation appears in cell (X,Y) if and only if class X is part of the domain and class Y is part of the range of the corresponding OWL property. Note that this means that datatype properties (which do not have a range) are not included in the class relationship matrix.

As outlined in the body of the document there are four relationships in the table (plus their inverses and sub-classed derivatives) that are technically allowed according to the OWL definitions, but would not be expected to occur in a practical application of the ontology. Specifically, services are not expected to perform services, services are not expected to use elements (directly), services are not expected to represent elements, and services are not expected to orchestrate compositions – all due to the Service class being defined as a logical representation of a repeatable activity; see The performs and performedBy Properties, The uses and usedBy Properties Applied to Service, The represents and representedBy Properties Applied to Service and The orchestrates and orchestratedBy Properties for details.

	Element	System	Service	Human Actor	Task
Element	uses usedBy represents representedBy	uses usedBy represents representedBy	uses usedBy represents representedBy performs	uses usedBy represents representedBy	uses usedBy represents representedBy
System	uses usedBy represents representedBy	uses usedBy represents representedBy	uses usedBy represents representedBy performs	uses usedBy represents representedBy	uses usedBy represents representedBy
Service	uses usedBy represents representedBy performedBy	uses usedBy represents representedBy performedBy	uses usedBy represents representedBy performs performedBy	uses usedBy represents representedBy performedBy	uses usedBy represents representedBy performedBy
Human Actor	uses usedBy represents representedBy	uses usedBy represents representedBy	uses usedBy represents representedBy performs	uses usedBy represents representedBy	uses usedBy represents representedBy does
Task	uses usedBy represents representedBy	uses usedBy represents representedBy	uses usedBy represents representedBy performs	uses usedBy represents representedBy doneBy	uses usedBy represents representedBy
Composition	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy performs orchestratedBy	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy orchestratedBy
Process	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy performs orchestratedBy	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy orchestratedBy
Service Composition	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy performs orchestratedBy	uses usedBy represents representedBy orchestratedBy	uses usedBy represents representedBy orchestratedBy
Service Contract			isContractFot	involvesParty
Effect
Service Interface			isInterfaceOf
Information Type
Event	generatedBy respondedToBy	generatedBy respondedToBy	generatedBy respondedToBy	generatedBy respondedToBy	generatedBy respondedToBy
Policy	appliesTo	appliesTo	appliesTo	isSetBy appliesTo	appliesTo
Thing

	Composition	Process	Service Composition	Service Contract	Effect
Element	uses usedBy represents representedBy orchestrates	uses usedBy represents representedBy orchestrates	uses usedBy represents representedBy orchestrates
System	uses usedBy represents representedBy orchestrates	uses usedBy represents representedBy orchestrates	uses usedBy represents representedBy orchestrates
Service	uses usedBy represents representedBy performedBy orchestrates	uses usedBy represents representedBy performedBy orchestrates	uses usedBy represents representedBy performedBy orchestrates	hasContract
Human Actor	uses usedBy represents representedBy orchestrates	uses usedBy represents representedBy orchestrates	uses usedBy represents representedBy orchestrates	isPartyTo
Task	uses usedBy represents representedBy orchestrates	uses usedBy represents representedBy orchestrates	uses usedBy represents representedBy orchestrates
Composition	uses usedBy represents representedBy orchestrates orchestratedBy	uses usedBy represents representedBy orchestrates orchestratedBy	uses usedBy represents representedBy orchestrates orchestratedBy
Process	uses usedBy represents representedBy orchestrates orchestratedBy	uses usedBy represents representedBy orchestrates orchestratedBy	uses usedBy represents representedBy orchestrates orchestratedBy
Service Composition	uses usedBy represents representedBy orchestrates orchestratedBy	uses usedBy represents representedBy orchestrates orchestratedBy	uses usedBy represents representedBy orchestrates orchestratedBy
Service Contract					specifies
Effect				isSpecifiedBy
Service Interface
Information Type
Event	generatedBy respondedToBy	generatedBy respondedToBy	generatedBy respondedToBy
Policy	appliesTo	appliesTo	appliesTo	appliesTo	appliesTo
Thing

	Service Interface	Information Type	Event	Policy	Thing
Element			generates respondsTo	isSubjectTo
System			generates respondsTo	isSubjectTo
Service	hasInterface		generates respondsTo	isSubjectTo
Human Actor			generates respondsTo	setsPolicy isSubjectTo
Task			generates respondsTo	isSubjectTo
Composition			generates respondsTo	isSubjectTo
Process			generates respondsTo	isSubjectTo
Service Composition			generates respondsTo	isSubjectTo
Service Contract				isSubjectTo
Effect				isSubjectTo
Service Interface		hasInput hasOutput		isSubjectTo
Information Type	isInputAt isOutputAt			isSubjectTo
Event				isSubjectTo
Policy	appliesTo	appliesTo	appliesTo	appliesTo isSubjectTo	appliesTo
Thing				isSubjectTo

⇒ Referenced Documents

SOA Work Group

SOA Standards Discussion Forum

SOA Work Group Members Page

Service-Oriented Architecture Ontology Version 2.0 – Class Relationship Matrix