1. 31.10.04 updated 29.11.06CmpE 583 Fall 2006RDF Schema- 1 CmpE 583- Web Semantics: Theory and Practice INTRODUCTION TO RDF SCHEMA Atilla ELÇİ Computer Engineering Department Eastern Mediterranean University

2. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 2 Introduction RDF is basis for the world of the Semantic Web. RDF Schema is the transformation language for simple ontology cases in RDF.

3. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 3 Agenda Rudimentary ontology:  RDF Schema (RDFS) language

4. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 4 RDF: Part Played by RDFS RDF describes resources over the Internet. RDFS is used to create class hierarchies for the classification and description of resources. Domain-neutral lightweight schema language. Its vocabulary description is written in RDF.

5. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 5 RDF: Part Played by RDFS The Semantic Web Stack A layered approach to creating the Semantic Web by Tim Berners-Lee, circa 1998. W3C Semantic Web Cake W3C Semantic Web Cake, conceptual, circa 2006

6. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 6 RDF Schema Intro Ch. 9 in the textbook by Lacy. Notes.Notes Also see: Figures 5.9 – 10 and Listings 5.6 – 7 in Section 3 on RDF Schema in Chapter 5 in [Smith].Chapter 5

7. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 7 RDFS: the RDF Schema RDF Schema: pp. 34 – 56 in Herman-2006. RDF Schema RDF Schema: pp.: 43 - 58 in [Herman] RDF Schema Further RDFS in [Herman]:  Classes, Collections, Sequences pp.: 59 – 69 Classes, Collections, Sequences  Graphical interface: pp.: 70-73. Graphical interface

8. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 8 RDFS in proper by Recommendations Section 5 in RDF Primer by Frank Manola, Eric Miller (eds.): Introductory volume of the six current recommendations:RDF Primer  Figure 18- Vehicle class hierarchy  Example 23- Vehicle class hierarchy in RDF/XML  Example 24- Example 23 abbreviated.  Example 25- An instance. Standard Recommendation of 10 February 2004: RDF Vocabulary Description Language 1.0: RDF Schema by Dan Brickley, R.V. Guha (eds.).RDF Vocabulary Description Language 1.0: RDF Schema

9. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 9 RDF Specifications by W3C Obsolete recommendations of 1999:  RDF Model and Syntax (1999 Recommendation) RDF Model and Syntax (1999 Recommendation)  RDF Schema (1999 Proposed Recommendation). RDF Schema (1999 Proposed Recommendation) Current Recommendations set dated 10 February 2004:  RDF/XML Syntax Specification (Revised) by Dave Beckett (ed.). RDF/XML Syntax Specification (Revised)  RDF Vocabulary Description Language 1.0: RDF Schema by Dan Brickley, R.V. Guha (eds.). RDF Vocabulary Description Language 1.0: RDF Schema  RDF Primer by Frank Manola, Eric Miller (eds.). RDF Primer  Resource Description Framework (RDF): Concepts and Abstract Syntax by Graham Klyne, Jeremy Carroll (eds.). Resource Description Framework (RDF): Concepts and Abstract Syntax  RDF Semantics by Patrick Hayes (ed.) RDF Semantics  RDF Test Cases by Jan Grant, Dave Beckett (eds.). RDF Test Cases

10. 31.10.04 updated 29.11.06 CmpE 583 Fall 2006 RDF Schema- 10 Where to Get More Information A full-day Semantic Web Tutorial by TBL et. al.Semantic Web Tutorial [Smith] The Semantic Web: A Guide to the Future of XML, Web Services, and Knowledge Management, 1st edition, by Kevin T. Smith, Michael C. Daconta, Leo J. Obrst. John Wiley & Sons, 2003. ISBN:0471432571. Available as e-book at ACM Professional Development Center.The Semantic WebACM Professional Development Center RDF Schema: pp.: 43 - 58 in Tutorial on Semantic Web Technologies by Ivan Herman, dated 27 Oct 2004. RDF SchemaTutorial on Semantic Web Technologies RDF Vocabulary Description Language 1.0: RDF Schema by Dan Brickley, R.V. Guha (eds.). RDF Vocabulary Description Language 1.0: RDF Schema Semantic Web: WWW Consortium Semantic Web pages, 2004.Semantic Web pages