Architected Futures™

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Drupal RDF Facilities

Drupal provides a number of RDF and/or semantic processing facilities, not all of which are directly related. At the time of this writing, the Drupal v6 modules include the following:

Drupal v6 RDF Modules
AF Module 6x Vers Comments
* RDF  1.0Alpha7 Base for RDF in D6. Requires PHP5.2+. Benefits from ARC2.
* RDF CCK  2.xDev Allows site administrators to map each content type, node title, node body and CCK field to an RDF term (class or property). By default, creates local classes and properties for all content types and fields. (Depends on Evoc.)
* Evoc  1.0Alpha2 External Vocabulary Importer Module. Imports external RDF vocabularies. Caches external RDF vocabulary in Drupal and exposes its classes and properties to other modules. (Depends on RDF and SPARQL.)
* ARC  n/a External library of RDF support functions for PHP, supports parsing, serialization, and storage (using MySQL). This is not a Drupal module. However, some Drupal modules depend on, or are otherwise programmed to optimize their performance, when the ARC libraries are available as part of the web site.
* SPARQL  1.0Alpha1 Query language for pattern matching against RDF graphs
* Relations API  1.0Beta1 Supports building arbitrary node relations using RDF
  Resource   Enables the creation of resource nodes identified by URIs and published in RDF format. Part of Drupal RDF development – not yet available.
* Neologism  1.xDev Lightweight web-based vocabulary editor and publishing tool for vocabulary authoring.
  Exhibit  1.0Beta1 Displays structured data in the form of rich visualizations
  SIOC  1.1 Semantically Interlinked Online Communities. Specification for describing communities using online discussion forums or blogs, leading to distributed conversations. Provides a facility to link the communities to create a distributed online community.
  OpenDover  1.0Beta2 Web service that semantically evaluates comments and determines if they are positive or negative, returns ratings.
  conStruct  1.xDev Middleware layer that allows a Drupal website to act as a front-end interface that drives a separate tier operating environment provided behind the Drupal site which is accessed as a set of web services. The overall facility claims to be based on ontologies and semantic processing.
  Calais  3.4 Integrates the Calais web service into Drupal to perform semantic analysis of content and suggestion of keyword and taxonomy metadata. Requires (free) registration and API key.

 

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