The Semantic Web = a Web with a meaning.
"If HTML and the Web made all the online documents look like one huge book, RDF, schema, and inference languages will make all the data in the world look like one huge database"
Tim Berners-Lee, Weaving the Web, 1999
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What Is The Semantic Web?

The word semantic stands for the meaning of. The semantic of something is the meaning of something.
The Semantic Web is a web that is able to describe things in a way that computers can understand.

• The Beatles was a popular band from Liverpool.
• John Lennon was a member of the Beatles.
• The record "Hey Jude" was recorded by the Beatles.

Sentences like these can be understood by people. But how can they be understood by computers?
Statements are built with syntax rules. The syntax of a language defines the rules for building the language statements. But how can syntax become semantic?
This is what the Semantic Web is all about. Describing things in a way that computers applications can understand.
The Semantic Web is not about links between web pages.
The Semantic Web describes the relationships between things (like A is a part of B and Y is a member of Z) and the properties of things (like size, weight, age, and price)


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The Semantic Web is the extension of the World Wide Web that enables people to share content beyond the boundaries of applications and websites. It has been described in rather different ways: as a utopic vision, as a web of data, or merely as a natural paradigm shift in our daily use of the Web. Most of all, the Semantic Web has inspired and engaged many people to create innovative semantic technologies and applications. semanticweb.org is the common platform for this community.


http://www.w3schools.com/semweb/default.asp
http://semanticweb.org/wiki/Main_Page

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