The Semantic Web is an evolution of the World Wide Web which facilitate the ease in finding, sharing and combination of data, information and knowledge enabled by machine processable capability rather than only human oriented processing.
It is a collaborative effort led by W3C (The World Wide Web Consortium the main international standards organisation for the World Wide Web (W3)with participation from a large number of researchers and industrial partners
The Semantic Web provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries.
two core characteristics can be stated here
1. common platform for integration and combination of data from varied sources
2. language for recording how data relates to the real world
The Semantic Web is seen as an extension to the existing World Wide Web towards (better) processing of semantically marked-up content through software processes. Machine-readable data is a prerequisite to explore the increasing amount of data on the web and generate added value, by mutually sharing and processing information by automated tools as well as by people.