Higgins.owl 1.0

This page describes higgins.owl. Versions:

• Higgins.owl version 0.5.6 --the latest draft under review
• http://www.eclipse.org/higgins/ontologies/2006/higgins.owl --the currently published version

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.

Classes

1. Attribute
   • 0..N source
   • 0..N timeSpan
   • 0..1 lastModified
   • 0..1 syncConflict
2. ContextObject
   • 0..N hasContextRelationships
3. ContextRelationship
   • 0..N contextURI
4. DatatypeAttribute
   • 1..N datypeValue
5. DigitalSubject (see Digital Subject)
   • 1..1 uniqueIdentifier
   • 0..N timeSpan
   • 0..N attribute
6. ObjectAttribute
   • 1..N objectValue
7. SubjectRelationship
   • 1..1 contextURI
   • 1..1 subjectCUID
8. TimeSpan
   • 1..1 validFrom
   • 1..1 validTo

Subclasses of DatatypeAttribute

1. StringDatatypeAttribute
2. ...we need to create all the rest here (DateAttributeValue, NonNegativeIntegerAttributeValue, etc. for each of the XML Schema literal types used by OWL)

DataType (literal valued) Properties

1. contextURI - domain(ContextRelationship, SubjectRelationship), range("anyURI")
2. datatypeValue - domain(AttributeValue)
3. identifier - domain(AttributeStatement), range(xsd:normalizedString)
4. lastModified - domain(AttributeMetadata), range(xsd:dateTime)
5. subjectCUID - domain(SubjectRelationship), range(xsd:normalizedString)
6. syncConflict - domain(AttributeMetadata), range(xsd:boolean)
7. uniqueIdentifier - domain(DigitalSubject), range(xsd:normalizedString). Uniquely identifies a DigitalSubject within a context
8. validFrom - domain(TimeSpan), range(xsd:date)
9. validTo - domain(TimeSpan), range(xsd:date)

Sub-Properties of datatypeValue

1. stringDatatypeValue - range(xsd:string)

Object (object valued) Properties

1. attribute - domain(DigitalSubject), range(Attriubte)
2. contextRelationship - domain(ContextObject), range(ContextRelationship)
3. objectValue - domain(ObjectAttribute)
4. source - domain(Attribute), range(SubjectRelationship). The value is a SubjectRelationship that indicates the authoritative source of the value of this Attribute
5. timeSpan - domain(DigitalSubject, Attribute), range(TimeSpan)

Open Issues

1. We've agreed to add a "source" property to the Digital Subject's CUID. But does this really make sense at the DS instance level?