RDF Standard, Illustrated

 
 
By Jim Rapoza  |  Posted 2002-04-15 Email Print this article Print
 
 
 
 
 
 
 

The world wide web Consortium standard RDF, the underpinning technology to Web creator Tim Berners-Lee's vision of the semantic Web, has also become a very useful tool for describing the metadata behind content taxonomies, complex document descriptions an

The world wide web Consortium standard RDF, the underpinning technology to Web creator Tim Berners-Lees vision of the semantic Web, has also become a very useful tool for describing the metadata behind content taxonomies, complex document descriptions and site mappings.

Like other standards based on XML, Resource Description Framework is created and edited in text-based files, and while RDF is human-readable and simple to understand, complex RDF documents can quickly become unwieldy. Also, the nature of RDF lends itself well to graphical display.

A new free tool from the W3C makes it possible to browse and author RDF files in a visual development environment. Using Java-based IsaViz, we could open up RDF files and instantly view an interactive graphical representation of our file. We could easily navigate the interactive graphical view and zoom in and out of our file.

At first, the program can seem a little daunting, but an excellent online manual at www.w3.org/2001/11/IsaViz/usermanual.html provides better guidance and help than many commercial products.

IsaViz can run on any platform with a JVM. It can be downloaded at www.w3.org/2001/11/IsaViz.

 
 
 
 
Jim Rapoza, Chief Technology Analyst, eWEEK.For nearly fifteen years, Jim Rapoza has evaluated products and technologies in almost every technology category for eWEEK. Mr Rapoza's current technology focus is on all categories of emerging information technology though he continues to focus on core technology areas that include: content management systems, portal applications, Web publishing tools and security. Mr. Rapoza has coordinated several evaluations at enterprise organizations, including USA Today and The Prudential, to measure the capability of products and services under real-world conditions and against real-world criteria. Jim Rapoza's award-winning weekly column, Tech Directions, delves into all areas of technologies and the challenges of managing and deploying technology today.
 
 
 
 
 
 
 

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