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Namespaces in XML 1.0 (Third Edition)
We envision applications of Extensible Markup Language (XML) where a single XML document may contain elements and attributes (here referred to as a "markup vocabulary") that are defined for and used by multiple software modules. One motivation for this is modularity: if such a markup vocabulary exists which is well-understood and for which there is useful software available, it is better to re-use this markup rather than re-invent it. Such documents, containing multiple markup vocabularies, pose problems of recognition and collision. Software modules need to be able to recognize the elements and attributes which they are designed to process, even in the face of "collisions" occurring when markup intended for some other software package uses the same element name or attribute name. These considerations require that document constructs should have names constructed so as to avoid clashes between names from different markup vocabularies.By using XML, OWL information can easily be exchanged between different types of computers using different types of operating system and application languages. A W3C Recommendation is understood by the industry and the web community as a web standard. A W3C Recommendation is a stable specification developed by a W3C Working Group and reviewed by the W3C Membership.
Introduction to OWL
A triplestore is a purpose-built database for the storage and retrieval of triples, [ 1 ] a triple being a data entity composed of subject- predicate -object, like "Bob is 35" or "Bob knows Fred". Much like a relational database , one stores information in a triplestore and retrieves it via a query language . Unlike a relational database, a triplestore is optimized for the storage and retrieval of triples. In addition to queries, triples can usually be imported/exported using Resource Description Framework (RDF) and other formats.
Triplestore - Wikipedia, the free encyclopedia
| Translations home page | Advanced search for translations Translations of the document group “Resource Description Framework (RDF), Revised” The query results rely on the following RDF files: tr.rdf , Trans2005.rdf , Trans2006.rdf , Trans2007.rdf , Trans2008.rdf , Trans2009.rdf , Trans2010.rdf , Trans2011.rdf , Trans2012.rdf , TransTo2004.rdf , extras.rdf , langInfo.rdf , translators.rdf , docGroups.rdf , recs.rdf , commented.rdf , deadDucks.rdf , and extraControls.rdf . Copyright © 1994-2012 W3C ( MIT , ERCIM , Keio ), All Rights Reserved.
French Translations of W3C Documents
RDF en quelques slides
Slides explicatives sur les concepts du RDF et des bases de structures de données pour le web sémantique. by Feb 26
Pour les articles homonymes, voir OWL . Web Ontology Language ( OWL ) est un langage de représentation des connaissances construit sur le modèle de données de RDF . Il fournit les moyens pour définir des ontologies web structurées.
Web Ontology Language - Wikipédia
Note: XML Prague is also a very interesting pre-conference day, a traditional dinner, posters, sponsors announcements, meals, coffee breaks, discussions and walks that I have not covered in article for lack of time. When I was a child, I used to say that I was feeling Dutch when I was in France and French when I was in the Netherlands. That was nice to feel slightly different and I liked to analyze the differences between Dutch people who seemed to be more adult and civilized and French people who seemed to me more spontaneous and fierce. I have found back this old feeling of being torn between two different culture very strongly this week end at XML Prague.
Web Sémantique:OWL
Le guide du langage d'ontologie Web OWL
Copyright © 2004 W3C ® ( MIT , ERCIM , Keio ), tous droits réservés. Les règles de responsabilité , de marque commerciale , d' utilisation des documents et d' octroi de licences logicielles du W3C s'appliquent. Le World Wide Web dans son état actuel ressemble à une géographie avec de mauvaises cartes. Notre compréhension des documents et les moyens dont nous disposons reposent sur des recherches par mots-clés, que confortent une utilisation astucieuse de la connectivité des documents et les habitudes.
Qu'est-ce que RDF? Le format RDF permet de combiner deux documents XML en un seul, en décrivant les relations entre les données, et est utilisé par XUL pour indiquer dans le fichier lui-même comment le programme affichera les données. Quand utiliser RDF? Ce format convient lorsque l'information doit avoir une structure correspondant à celle de l'outil qui l'utilise, une interface graphique le plus souvent. Lorsque également l'on veut agréger des sources de données séparées.
RDF, description, comment l'utiliser notamment avec XUL
Web S?mantique:RDF
Une excellente doc bien explicative des différentes notions s'appliquant au RDF. by Mar 2
RDF - Semantic Web Standards
RDF is a standard model for data interchange on the Web. RDF has features that facilitate data merging even if the underlying schemas differ, and it specifically supports the evolution of schemas over time without requiring all the data consumers to be changed. RDF extends the linking structure of the Web to use URIs to name the relationship between things as well as the two ends of the link (this is usually referred to as a “triple”). Using this simple model, it allows structured and semi-structured data to be mixed, exposed, and shared across different applications. This linking structure forms a directed, labeled graph, where the edges represent the named link between two resources, represented by the graph nodes. This graph view is the easiest possible mental model for RDF and is often used in easy-to-understand visual explanations.HTML5+RDFa
This specification defines rules and guidelines for adapting the RDF in XHTML: Syntax and Processing (RDFa) specification for use in the HTML5 and XHTML5 members of the HTML family. The rules defined in this document not only apply to HTML5 documents, but also to HTML4 documents interpreted through the HTML5 parsing rules. Status of this document This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the most recently formally published revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.