1.     Definition

“The Semantic Web is the abstract representation of data on the World Wide Web, based on the RDF standards and other standards to be defined. It is being developed by the W3C, in collaboration with a large number of researchers and industrial partners.[1]”

2.     Problematic

Nowadays the internet offers reams of information in term of data. Data is saved in many different geographical locations all over the world and can be accessed from any other location. Day by day more data is generated and saved so that the volume of information gets higher. At the moment the information saved as data is only logical interpreted by human beings. On the other hand computer cannot interpret information and also cannot link relevant information. Nowadays complicated algorithms use statistic methods to search, link and display relevant information combined with a searched string.[2]

3.     Basic idea

“The Semantic Web brings to the Web the idea of having data defined and linked in a way that it can be used for more effective discovery, automation, integration, and reuse across various applications. [3]”

“The Semantic Web is about two things. It is about common formats for integration and combination of data drawn from diverse sources, where on the original Web mainly concentrated on the interchange of documents. It is also about language for recording how the data relates to real world objects. That allows a person, or machine, to start off in one database, and then move through an unending set of databases which are connected not by wires but by being about the same thing.[4]”

4.     Implementation

Existing resources get restructured with machine readable metadata. This metadata has a predefined signification and can be interpreted with the help of the inference rule. Semantic web is subject to a layer architecture displayed in the following graphic.

Picture 1: Semantic web architecture [5]

The technologies used at various levels are at various stages developed. The following points show a selection of key technologies:

• Uniform Resource Identifier (URI), targeted and unique find of resources
• Unicode, character streams are encoded in Unicode
• XML, Syntax for meta language
• Schema, defined hierarchically tiered markup elements
• Resource Description Framework (RDF), fundament for collecting and sharing information about resources

To realize the full potential of Semantic Web languages in the fifth layer are required. Using the ontology vocabulary information gets logical constructs to allow the review of statements (logic, proof and trust). The upper layers are still ignored in the current research ignored.[6]

5.     Advantages and Disadvantages

6.     Example

Particularly in relation to eCommerce Semantic Web is useful. In the internet everything is about collecting information and also eCommerce deals with a lot of information. Consumers search product during the web and get many facts about a product. But to get all information they have to visit many websites. With semantic web the consumer will find all information with only one search.

If the consumer wants to buy a automobile tyre, he will get all information about it with the semantic web. He will find the cheapest seller, output figures, materials, grade of quality, point of origin, pictures and tables, information about the inventor and many more facts.