All Data is information, Connected data is knowledge.
To connect data a common language or notation is a must. There are many standards available that can be sued in creating this common notation. Popular among them are Xtensible Markup Language(XML) and Resource Description Framework (RDF). Both have related technologies that extend their functionalities.
Drupal is leading the way in making available technologies that enable Open Gov and Open Data. It is the leading CMS for Government websites, particularly those with data applications. Its no brainer that the Open Government Platform (OGPL) released by Government of India is based on Drupal. The idea and a early implementation of Drupal for data applications came from an award winning paper by Stephane Corlosquet et al. This can revolutionize the way data is handled in Government. The presentation is embedded below: