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Thursday, 3 January 2013

OWL




OWL is stand for Ontology Web Language. OWL is a set of markup languages which are designed for use when the information contained in documents needs to be processed by applications. OWL describes the hierarchical of ideas in a domain, in a way that can be parsed and understood by software. OWL has more facilities for expressing meaning and semantics than XML and RDF. OWL is the meaning of terms in vocabularies and the relationships between those terms.
In OWL there are three languages which are OWL Lite, OWL DL, OWL Full.

OWL Lite
OWL DL
OWL Full
  • Need a classification hierarchy and simple constraints.
  • Cardinality values 0 and 1

  • More complex than Lite
  • Increase in hierarchical tree
  • User want maximum expressiveness and all computation will finish in finite time


  • More complex than lite and DL
  • User want maximum expressiveness and syntax freedom
  • No computation guarantee

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