Follows where previous video left off with its description of classes, properties, domain and range. Discusses how RDF Schema approaches membership of a class differently than does object-oriented thinking. Important: Example shows how adding a property to a resource can automatically confer membership in a class to that resource. One in a series of videos.
URL: https://www.youtube.com/watch?v=WztnSLdbAf4
Keywords: RDF Schema, Domain, Range, Class, Property, Web Ontology Language (OWL)
Author: Sadawi, Noureddin
Date created: 2014-03-16 04:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P10M
Educational use: instruction
Educational audience: generalPublic
Interactivity type: expositive
- Knows that the word "ontology" is ambiguous, referring to any RDF vocabulary, but more typically a set of OWL classes and properties designed to support inferencing in a specific domain.
- Knows Web Ontology Language, or OWL (2004), as a RDF vocabulary of properties and classes that extend support for expressive data modeling and automated inferencing (reasoning).
- Understands how an RDF class (named set of things) fundamentally differs from an object-oriented programming class, which defines a type of object bundling "state" (attributes with data values) and "b
- Understands that resources are declared to be members (instances) of classes using the property rdf:type.
- Understands the role of formally declared domains and ranges for inferencing.