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Created: August 15, 2001.
News: Cover StoriesPrevious News ItemNext News Item

New Online RDF Validation Service from W3C Supports Data Model Visualization.

W3C has announced the availability of an online validation service for RDF (Resource Description Framework) documents. The new RDF validation service "is based on version 1.0.3 of the Another RDF Parser (ARP). ARP was created and is maintained by Jeremy Carroll at Hewlett-Packard Labs in Bristol." The RDF validation service at W3C was created and is maintained by Art Barstow of HP, visiting W3C Fellow at MIT. One may use the online validation service by entering a URI or copying an RDF/XML document into the text field of the HTML forms interface; a 3-tuple (triple) representation of the corresponding data model as well as a graphical visualization of the data model will be displayed. The graph is generated using the GraphViz open source graph drawing software from AT&T Labs. The servlet uses ARP, and thus depends on Xerces and SAX2 as documented at the ARP home page. The servlet source code is available from the W3C website.

Part of the W3C Semantic Web Activity, the Resource Description Framework (RDF) "integrates a variety of web-based metadata activities including sitemaps, content ratings, stream channel definitions, search engine data collection (web crawling), digital library collections, and distributed authoring, using XML as an interchange syntax. The RDF specifications provide a lightweight ontology system to support the exchange of knowledge on the Web."


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