The web today enables people to access documents and services on the Internet but today’s methods require human intelligence. The semantic web augments the current web with formalized knowledge and well formatted data that can be processed by computers. . The semantic web is a vision of information that is understandable by computers, so that they can perform more of the tedious work involved in finding, combining, and acting upon information on the web. Data that is generally hidden away in HTML files is often useful in some contexts, but there is no global system for publishing data in such a way that it can be easily processed by anyone. This makes Semantic Web a rational solution for the problem.. This will enable computers to assist human users in tasks and understand data the way they cannot today. The layered architecture serves as the basic building block of the system and supports the vision of a Web imbued with meaning. The similarities that it shares with the object oriented programming language has made the Unified Modelling Language usable by both object-oriented Programming and semantic web development and the Semantic Web Browsers, extend the notion of the Web browser into the Semantic Web. There will also be creation of more open market in information processing and computer services enabling the creation of new applications and services from combinations of existing service.
I.Introduction
Semantics is the study of meaning. It’s as old as the ancient Greeks. For most of us it was a deadly dull sub-discipline of philosophy, to be avoided. But it turns out that we can’t avoid it. We are drowning in a sea of data which occasionally is generously referred to as information‚ but the truth is that almost all of it must be interpreted by humans to be of any use. The growth and availability of data and, therefore, our need to consider it in decision-making and planning is growing exponentially, and our systems, rather than helping with this, are for the most part contributing to the problem. The Semantic Web is a web that is able to describe things in a way that computers 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). In an evolving development of the World Wide Web in which the meaning (semantics) of information and services on the web is defined, making it possible for the web to “understand” and satisfy the requests of people and machines to use the web content. It derives from World Wide Web Consortium director Sir Tim Berners-Lee’s vision of the Web as a universal medium for data, information, and knowledge exchange.
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