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| − | This page summarizes the higgins.owl ontology here http://www.eclipse.org/higgins/ontologies/2006/higgins.owl
| + | #REDIRECT [[Higgins Data Model 1.0]] |
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| − | Every [[Context]] can defines its own ontology. This ontology declares the OWL classes and properties used by instances within that [[Context]]. This Context-defined ontology must be based on higgins.owl (i.e. it must import higgins.owl).
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| − | ==Classes==
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| − | This section is a summary of the main classes in higgins.owl. Each numbered item lists a class (e.g. "Attribute"). The sub-items show properties defined for this class (e.g. "source") prefixed by the cardinality of this property on this class (e.g. "O..N").
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| − | Note: subclasses of SimpleValue are listed separately in the next section to reduce clutter.
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| − | Classes in alphabetic order:
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| − | ; Attribute: Instances of this class are used as the domain of a set of higgins:metadata properties that, taken together, are considered to be the metadata about a higgins:attribute sub-property.
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| − | ; ComplexValue: subclass of Value
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| − | ; ContextId: URI of a Context
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| − | ; ContextObject:
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| − | * 0..N hasContextRelations
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| − | ; ContextRelation:
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| − | * 0..N contextId
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| − | ; SimpleValue (subclass of Value):
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| − | * 1..N simpleValue
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| − | ; [[Digital Subject]]:
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| − | * 1..1 uniqueIdentifier
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| − | * 0..N timeSpan
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| − | * 0..N attribute
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| − | ; SubjectRelation (subclass of ComplexValue) (see [[Subject Relation]]):
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| − | * 1..1 contextId
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| − | * 1..1 subjectId
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| − | ; SubjectCorrelation (subclass of SubjectRelation): If DigitalSubject A has a correlation relation to DigitalSubject B, this implies that that A and B represent different representations of the same underlying Entity. This relation only navigable in one direction: in this example from A to B.
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| − | ; TimeSpan:
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| − | * 0..1 validFrom --if not present, assume validFrom is the beginning of time
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| − | * 0..1 validTo --if not present, assume validTo is the end of time
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| − | ; Value:
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| − | * 0..N source
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| − | * 0..N creator
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| − | * 0..N creationTime
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| − | * 0..N timeSpan
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| − | * 0..1 lastModified
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| − | * 0..1 syncConflict
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| − | * 0..1 lastVerifiedFromSource
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| − | * 0..1 lastVerifyAttempt
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| − | ===Subclasses of SimpleValue===
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| − | The following mirror the XML Schema types recommended for use with OWL
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| − | # AnyURI
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| − | # Base64Binary
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| − | # Boolean
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| − | # Byte
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| − | # Date
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| − | ...etc
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| − | ==DataType (literal valued) Properties==
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| − | ; lastModified:
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| − | * ''domain:'' Value
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| − | * ''range:'' xsd:dateTime
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| − | ; lastVerifiedFromSource:
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| − | * ''domain:'' Value
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| − | * ''range:'' xsd:dateTime
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| − | ;lastVerifyAttempt:
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| − | * ''domain:'' Value
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| − | * ''range:'' xsd:dateTime
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| − | ;simpleMetadata:
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| − | * ''domain:'' Value, DigitalSubject
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| − | ;simpleValue:
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| − | * ''domain:'' SimpleValue
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| − | ;subjectID:
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| − | * ''domain:'' SubjectRelation
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| − | * ''range:'' xsd:normalizedString
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| − | ;syncConflict:
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| − | * ''domain:'' Value
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| − | * ''range:'' xsd:boolean
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| − | ;validFrom:
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| − | * ''domain:'' TimeSpan
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| − | * ''range:'' xsd:date
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| − | ;validTo:
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| − | * ''domain:'' TimeSpan
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| − | * ''range:'' xsd:date
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| − | ==Sub-Properties of simpleValue==
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| − | # anyURI - domain(AnyURI), range(xsd:anyURI)
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| − | # boolean - domain(Boolean), range(xsd:boolean)
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| − | # base64Binary - domain(Base64), range(xsd:base64Binary)
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| − | ...etc for all of the rest of the XML Schema datatypes
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| − | ==Object (object valued) Properties==
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| − | # attribute - domain(DigitalSubject, ContextObject, ComplexValue), range(Value, Attribute)
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| − | # complexMetadata - domain(DigitalSubject, Attribute)
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| − | # complexValue - domain(ComplexAttribute)
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| − | # contextID - domain(ContextRelation, SubjectRelation), range(ContextID)
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| − | # contextRelation - domain(ContextObject), range(ContextRelation)
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| − | # source - domain(Attribute), range(SubjectRelation). The value is a SubjectRelation that indicates the authoritative source of the value of this Attribute
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| − | # timeSpan - domain(DigitalSubject, Attribute), range(TimeSpan)
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| − | # uniqueIdentifier - domain(DigitalSubject), range(higgins:StringSimpleAttribute). Uniquely identifies a DigitalSubject within a context
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| − | ==Annotation Properties==
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| − | The following have been copied verbatim from http://protege.stanford.edu/plugins/owl/owl-library/2005/08/07/xsp.owl. These allow us to express the semantics of XML Schema within a Higgins-based ontology RDF file.
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| − | # base
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| − | # fractionDigits
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| − | # length
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| − | # maxExclusive
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| − | # maxInclusive
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| − | # maxLength
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| − | # minExclusive
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| − | # minInclusive
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| − | # minLength
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| − | # pattern
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| − | # totalDigits
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| − | == Misc Notes ==
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| − | The value of the uniqueIdentifier attribute is immutable. All [[Digital Subject]]s have exactly one uniqueIdentifier attribute whose value is set when the [[Digital Subject]] is instantiated.
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| − | ''Note: The properties of the Context container itself are attached to special object called ContextObject within the instance data and also described in the ontology.''
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| − | ==CVS Access==
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| − | The following Eclipse Team Project Set (.psf) will give you access to the higgins.owl source file:
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| − | <?xml version="1.0" encoding="UTF-8"?>
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| − | <psf version="2.0">
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| − | <provider id="org.eclipse.team.cvs.core.cvsnature">
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| − | <project reference="1.0,
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| − | :extssh:dev.eclipse.org:/cvsroot/technology,
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| − | org.eclipse.higgins/ontology,org.eclipse.higgins.ontology"/>
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| − | </provider>
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| − | </psf>
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| − | ==See Also==
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| − | * [http://eclipse.org/higgins Higgins Home]]
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| − | * [[Higgins Wiki]]
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