This presenation shows the trand of standardization for the Semantic Web and OWL 2 Web Ontology Language.

1. The Standardization of Semantic Web Ontology Dr. Myungjin Lee

2. The Semantic Web

3. The Semantic Web The Semantic Web is not a separate Web but an extension of the current one, in which information is given well defined meaning, better enabling computers and people to work in cooperation. By Tim Berners-Lee The Semantic Web is a group of methods and technologies to allow machines to understand the meaning - or "semantics" - of information on the World Wide Web. From Wikipedia 3

4. Semantic Web Stack The Semantic Web Stack, also known as Semantic Web Cake or Semantic Web Layer Cake, illustrates the architecture of the Semantic Web. Semantic Web - XML2000 (2000) 4

5. Semantic Web Stack Representing Knowledge in the Semantic Web(2005) Rule Interchange Format (RIF) Highlight (2007) 5

6. Technologies Classified by W3C 6

7. Comparing the Stack with Classification Vertical Applications Inference Vocabularies Query Linked Data 7

8. Recommendations for the Semantic Web 8 RIF OWL 2 OWL 1 SPARQL RDFS RDF

9. Other Specifications 9

10. Web Ontology Language

11. Web Ontology Language The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies. From Wikipedia An ontology is an explicit specification of a conceptualization. By Tom Gruber 11 OWL 2 OWL 1

12. OWL 2 Web Ontology Language 12

13. OWL 2 Documents 13

14. OWL 2 Syntaxes 14

16. Concept intersection

17. Universal restrictions

18. Limited existential quantification Complex concept negation Role hierarchy (subproperties - rdfs:subPropertyOf) Nominals. (Enumerated classes of object value restrictions - owl:oneOf, owl:hasValue). Inverse properties Functional properties Cardinality restrictions (owl:Cardinality, owl:MaxCardinality) Use of datatype properties, data values or data types Limited complex role inclusion axioms; reflexivity and irreflexivity; role disjointness Qualified cardinality restrictions 15 OWL DL OWL Lite OWL 2

20. Punning

21. Extended Annotations

22. Annotations

23. Axioms about annotation properties

24. Other Innovations

25. Declarations

26. Top and Bottom Properties

27. IRIs

28. Imports and Versioning

29. Minor features

30. Anonymous Individuals

32. DisjointUnion

33. DisjointClasses

34. NegativeObjectPropertyAssertion and NegativeDataPropertyAssertion

35. New constructs for properties

36. Self Restriction

37. Property Qualified Cardinality Restrictions

38. Reflexive, Irreflexive, and Asymmetric Object Properties

39. Disjoint Properties

40. Property Chain Inclusion

41. Keys

42. Extended datatype capabilities

43. Extra Datatypes and Datatype Restrictions

44. N-aryDatatypes

45. Datatype Definitions

47. the expressive power used by many large-scale ontologies

48. OWL 2 QL

49. the expressive power typically used in simple ontologies like thesauri, and (most of) the expressive power of ER/UML schemas

50. OWL 2 RL

51. for OWL 2 applications that can trade the full expressivity of the language for efficiency17 OWL RL OWL EL OWL QL

52. Question and Answer 18