April 2, 2007 3:07 PM
Growth of common vocabularies
RDF specifications state that RDF provides an open-world framework, in this framework anyone can refer to any resource. Though RDF semantics can be used to infer dependable reasoning from RDF data, it does not stop designers and developers from making contrary inferences.
These contrary inferences may lead to multiple disassociated independent vocabularies. The common vocabulary is the solution to this problem.
Example:
Subject- speed
It is known that 'speed' is the term used to describe the rate of movement of something. The URIref for this resource will provide information about all possible triples for: vehicle speed, data speed, light speed, sound speed, wind speed etc. If someone wants to describe narration speed of an artist, to be able to compare this property 'speed' must be defined as a RDF resource. Here instead of defining a new RDF resource for 'speed' in a new vocabulary a new property (Predicate) 'narration' may be added to the existing RDF graph for resource 'speed'.
Therefore adding new resources & properties to an existing vocabulary will build a common vocabulary database. This common vocabulary on the World Wide Web will make Transition from current HTML/XML implementations to Web 3.0 RDF/XML, OWL fast and easy with reduced cost. The objective is to capture all contrary inferences in a common vocabulary database.



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