W3C Semantic Web ActivityThe Semantic Web provides a common framework that allows data to be shared andreused across application, enterprise, and community boundaries. It is a collaborativeeffort led by W3C with participation from a large number of researchers and industrialpartners. It is based on the Resource Description Framework (RDF). See also theseparate FAQ for further information.Further linksOn this page: Specifications | Publications | Presentations | Current Groups | PastGroupsLatest news: See the activity weblogLatest “layercake” diagram: in SVG, PNG, and small sized (300×315) PNG formats.Active Groups: Semantic Web Coordination Group | Rules Interchange FormatWorking Group | OWL Working Group | RDB2RDF Working Group | SPARQLWorking Group | Semantic Web Deployment Working Group | POWDER WorkingGroup | Health Care and Life Sciences Interest Group | Semantic Web Interest GroupPast Groups: Best Practices and Deployment Working Group | RDF Core WorkingGroup | Web Ontology Working Group | Education and Outreach Interest Group |GRDDL Working GroupRelated Groups at W3C: Semantic Sensor Network Incubator Group | Social WebIncubator Group | Linking Open Data Community Project | Media Fragments WorkingGroup | Media Annotations Working GroupNearby: SW FAQ | Use Cases and Case Studies | “Business Case for the SemanticWeb” | RDFa info page | List of Tools | On-line validators | List of Books | ActivityNews | Semantic Web Logos and ButtonsActivity RSS feeds: Activity news | W3C QA blog | FAQ | SW Use Cases and CaseStudiesIntroductionThe Semantic Web is a web of data. There is lots of data we all use every day, and it isnot part of the web. I can see my bank statements on the web, and my photographs, andI can see my appointments in a calendar. But can I see my photos in a calendar to seewhat I was doing when I took them? Can I see bank statement lines in a calendar?Why not? Because we dont have a web of data. Because data is controlled byapplications, and each application keeps it to itself.The Semantic Web is about two things. It is about common formats for integration andcombination of data drawn from diverse sources, where on the original Web mainlyconcentrated on the interchange of documents. It is also about language for recordinghow the data relates to real world objects. That allows a person, or a machine, to startoff in one database, and then move through an unending set of databases which areconnected not by wires but by being about the same thing.Specifications (Recommendations and Notes)You may want to look at the collection of SW Case Studies and Use Cases to see howorganizations are using these technologies today. The list of specifications is on aseparate page for a better readability.
Publications / Articles / InterviewsThe following is a partial list of various publications and or interviews by the W3C Staffthat help explain the goals and objectives of the Semantic Web.•Interview with Tim Berners Lee at a technology symposium at the Embassy of Finlandin Washington, (October 2009).•“Ivan Herman discusses the Semantic Web Activity at the Word Wide WebConsortium”, ZDNet Podcast Interview with Paul Miller (April 2009); listen to thepodcast on-line or download the interview.•“What is the future of the internet”, BBC Radio 4 Interview with Tim Berners-Lee(9July 2008).•“Sir Tim Berners-Lee Talks About the Semantic Web”, Transcript of the PodcastInterview with Paul Miller (February 2008); the sound version can also be accessed on-line.•The Semantic Web in Action, by Lee Feigenbaum, Ivan Herman, Tonya Hongsermeier,Eric Neumann, and Susie Stephens, Scientific American, 297(6), pp. 90-97, (December2007).•Interview with Tim Berners-Lee, Business Week, April 2007.•Tim Berners-Lee on the Semantic Web, Video on MIT Technology Review, March2007 (the video of the interview can also be accessed).•The Semantic Web Revisited, by Nigel Shadbolt, Tim Berners-Lee and Wendy Hall,IEEE Intelligent Systems 21(3) pp. 96-101, May/June 2006.•Le Web Sémantique: un interview avec Ivan Herman , by Xavier Borderie at Journaldu Net, développeurs, June 2006. (Interview in French.)•The Semantic Web, Scientific American, May 2001, Tim Berners-Lee, James Hendlerand Ora Lassila.See the archive for earlier entries on this list.PresentationsDetails of recent and upcoming Semantic Web related talks, given by the W3C Staff, thestaff of the W3C Offices, and members of the W3C Working Groups are availableseparately. A list of all Semantic Web related talks since 2004 is also available.References to a small subset of these presentations are provided here for convenience.•2009-09-30, State of the Semantic Web, Ivan Herman, The Third Chinese SemanticWeb Symposium in Nanjing, China•2009-09-29, Introduction to the Semantic Web (tutorial), Ivan Herman, The ThirdChinese Semantic Web Symposium in Nanjing, China•2009-06-15, SPARQL By Example (tutorial), Lee Feigenbaum , Eric Prudhommeaux,2009 Semantic Technology Conference in San Jose, CA, USA•2009-06-15, Introduction to the Semantic Web (tutorial) Ivan Herman, 2009 SemanticTechnology Conference in San Jose, CA, USA•2009-06-15, What is New in W3C Land? Ivan Herman, 2009 Semantic TechnologyConference in San Jose, CA, USA•2009-05, Introduction and Applications of Semantic Web, Ivan Herman, “The future ofweb standards, HTML5, XHTML and semantic technologies”, series of talks inBrisbane, Sydney, Canberra, and Hobart, Australia•2009-05-12, The 2009 Semantic Web Landscape, Lee Feigenbaum, PRISM Forum SIGMeeting, in Luzern, Switzerland
•2009-02-04, Linked Data, Tim Berners-Lee, TED2009 “The Great Unveiling” in LongBeach, California, USA. The talk is also available on video.GroupsThe following groups are part of the Semantic Web Activity.Active GroupsSemantic Web Coordination GroupThe Semantic Web Coordination Group is tasked to provide a forum for managing theinterrelationships and interdependencies among groups focusing on standards andtechnologies that relate to this goals of the Semantic Web Activity. This group isdesigned to coordinate, facilitate and (where possible) help shape the efforts of otherrelated groups to avoid duplication of effort and fragmentation of the Semantic Web byway of incompatible standards and technologies.Rules Interchange Format Working GroupThis Working Group is chartered to produce a core rule language plus extensions whichtogether allow rules to be translated between rule languages and thus transferredbetween rule systems. The Working Group will have to balance the needs of acommunity diverse including Business Rules and Semantic users Web specifyingextensions for which it can articulate a consensus design and which are sufficientlymotivated by use cases.OWL Working GroupThe mission of the OWL Working Group, is to produce a W3C Recommendation thatrefines and extends the 2004 version of OWL. The proposed extensions are a small setthat: have been identified by users as widely needed, and have been identified by toolimplementers as reasonable and feasible extensions to current tools.RDB2RDF Working GroupThe mission of the RDB2RDF Working Group, part of the Semantic Web Activity, is tostandardize a language for mapping relational data and relational database schemas intoRDF and OWL, tentatively called the RDB2RDF Mapping Language, R2RML.SPARQL Working GroupFormerly known as RDF Data Access Working Group, it developed the SPARQL QueryLanguage recommendation published in January 2008. The group is currently charteredto make small updates to the SPARQL specification that have been identified as usersand implementers as feasible and useful extensions.Semantic Web Deployment Working GroupThe mission of this Working Group is to provide guidance in the form of W3CTechnical Reports on issues of practical RDF development and deployment practices inthe areas of publishing vocabularies, OWL usage, and integrating RDF with HTMLdocuments.This group is also responsible for the development of the RDFa and SKOSspecifications.Semantic Web Interest GroupThe Semantic Web Interest Group is a forum for W3C Members and non-Members todiscuss innovative applications of the Semantic Web. The Interest Group also initiatesdiscussion on potential future work items related to enabling technologies that supportthe Semantic Web, and the relationship of that work to other activities of W3C and tothe broader social and legal context in which the Web is situated.Semantic Web Health Care and Life Sciences Interest Group