04.10.’04 updated ’06CmpE 583 Fall 2008Terminology- 1 CmpE 583- Web Semantics: Theory and Practice TERMINOLOGY Atilla ELÇİ Computer Engineering Department Eastern Mediterranean University

04.10.’04 updated ’06 CmpE 583 Fall 2008 Terminology- 2 Introduction Proper vocabulary is utterly important in the study of semantic Web. Grasping correct terminology is part of proper learning process. Knowing the history and evolution of the subject area helps in placing current developments into proper perspective. Acquaintance with the parties involved in SemWeb developments allows us selection of partners in the future. Understanding the subject is eased through a proper model mimicking the mechanics of interaction and hierarchy of components in effecting semantic Web.

04.10.’04 updated ’06 CmpE 583 Fall 2008 Terminology- 3 Agenda Semantic Web terminology Parties involved in semantic Web arena Evolution of semantic Web thechnology Components thereof.

04.10.’04 updated ’06 CmpE 583 Fall 2008 Terminology- 4 URI Rule RSS XML OWL WS RDF WWW GRID Terminology Semantic Web:  See Introduction to “Web Semantics” in Intro Presentation.Intro Presentation  A common framework that allows data to be shared and reused across application, enterprise, and community boundaries based on RDF [W3C-2004].  Webster’s Online Dictionary: serves Wikipedia content!  On Wikipedia On Wikipedia RDF: Resource Description Framework:  RDF integrates a variety of applications using XML for syntax and URIs for naming. RDF  The RDF specifications provide a lightweight ontology system to support the exchange of knowledge on the Web.RDF specifications  See W3C RDF Site.W3C RDF Site

04.10.’04 updated ’06 CmpE 583 Fall 2008 Terminology- 5 Terminology (continued) XML- Extensible Markup Language is a simple, very flexible text format derived from SGML (ISO 8879). XMLISO 8879 URI- Uniform Resource Identifier (URI aka URL) are short strings that identify resources in the web. URI Ontology: Webster's Online Dictionary. Ontology  By Tom Gruber: What is an ontology?What is an ontology? OWL- Web Ontology Language: uses URI for naming and the framework provided by RDF. OWL  OWL suit of Specifications were announced on 10 Feb OWL suit of Specifications  OWL 2 drafts are published on 10 October Public comments are expected by 23 October OWL 2 drafts

04.10.’04 updated ’08 CmpE 583 Fall 2008 Terminology- 6 Parties W3C- World Wide Web Consortium.World Wide Web Consortium DARPA- Defence Advanced Reseach Project Agency (US Government). DARPA Semantic Web Services Initiative (SWSI). Semantic Web Services Initiative (SWSI) SemanticWeb.org is a community portal. SemanticWeb.org Ontolog community:  ONTOLOG - collaborative work environment ONTOLOG  Open, International, Virtual Community of Practice on Ontologies OGF- Open Grid Forum: the merger of the Global Grid Forum (GGF) and the Enterprise Grid Alliance (EGA).Open Grid Forum Semantic Web Science Association (SWSA)SWSA For detail on above, check Parties at Terminology Page.Terminology Page Elsevier Journal of Web Semantics: Started just over a year ago. Elsevier Journal of Web Semantics Many private enterprises and research groups are also involved. See Organizations tab at SWWG site.Organizations

04.10.’04 updated ’06 CmpE 583 Fall 2008 Terminology- 7 History Dan Brickley: Semantic Web History: Nodes and Arcs The WWW Proposal and RDF, updated 2001.Semantic Web History: Nodes and Arcs The WWW Proposal and RDF W3C Metadata Activity.Metadata Activity Tim Berners-Lee: The World Wide Web - Past Present and Future, Commemorative Lecture 2002 Japan Prize, The World Wide Web - Past Present and Future Eric Miller: Semantic Web, Phase 2: Developments and Deployment, presented at WWW2004 W3C Track on the Semantic Web, Semantic Web, Phase 2: Developments and DeploymentWWW2004W3C Track

04.10.’04 updated ’06 CmpE 583 Fall 2008 Terminology- 8 Where to Get More Information [TBL-2001] Tim Berners-Lee, James Hendler and Ora Lassila: The Semantic Web, Scientific American, May, PS, local copy.PSlocal copy [W3C-2004] Semantic Web: WWW Consortium Semantic Web pages, Semantic Web pages WWW Consortium: Semantic Web Services Initiative (SWSI) SemanticWeb.org Elsevier Journal of Web Semantics OntoLog - Collaborative work environment for ontology issues. OntoLog