What is Semantic Web?
The word semantic stands for the meaning of. The semantic of something is the meaning of something.
Semantic Web is a web that is able to describe things in a way that computers can understand.
The Semantic Web is a mesh of information linked up in such a way as to be easily process able by machines, on a global scale. You can think of it as being an efficient way of representing data on the World Wide Web, or as a globally linked database.
The Semantic Web was thought up by Tim Berners-Lee, inventor of the WWW, URLs, HTTP, and HTML. There is a dedicated team of people at the World Wide Web consortium (W3C) working to improve, extend and standardize the system, and many languages, publications, tools and so on have already been developed. However, Semantic Web technologies are still very much in their infancies, and although the future of the project in general appears to be bright, there seems to be little consensus about the likely direction and characteristics of the early Semantic Web.
The Statements are built with syntax rules. Syntax of a language defines the rules for building the language
statement. 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 is not a very fast growing technology. It 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)
How Can It Be Used?
If information about music, cars, and tickets (and everything else) were stored in RDF files, intelligent web applications could collect information from many different sources, combine information, and present it to users in a meaningful way.
Information like this:
References: http://www.w3schools.com/