May 10, 2007 8:28 AM
Transition to semantic web - part 3
In the part 2 of this blog series the metadata elements that can be used for a resource description are identified. The metadata elements defined by Dublin Core Metadata Initiative are included in a RDF resource description by adding the XML namespace for these elements. The metadata elements defined by the standards organization are also included by adding their respective XML namespace.
Example:
|
Step 3: How to provide and find metadata? - Definition of common namespace
Resource discovery procedures are required for web content description. In order to build new content a web resource URI and metadata are identified. If a new resource is added to WWW, the definition may be provided for common use in order to grow the information network. The definition of a web resource may exist somewhere in the cyberspace, to be able to find it one must know what to find and where to find. It is expected that there will be a common vocabulary database that will contain the Application Profile of the web resource and the corresponding namespace definition files. Application Profile is a document that will describe the web resource metadata.
If all agencies submit the Application Profile and namespace file with resource description to the common vocabulary database then a web content provider can find the appropriate definitions from this database. Refer blog post, since different standards organizations may provide standard metadata definitions for services, these may exist as Application Profile of respective services, such as DSL. These Application Profiles may be added to common vocabulary database. Since cost of maintenance of a centralized database is high, container resources can be provided for similar services for web content provider to be able to find web resources.
I am going to be blogging live from a couple of days of the 
Leave a comment