The system is based on a semantic-network to represent URL information. Figure 4.1 shows the structure of the knowledge organizer. When we find interesting information on the Internet or on Intranets, we can store the information like URL, the title of the page, comments, date and so on, on the URL management server so that the information can be shared with other members. If we want to describe the relationship with other information in the semantic-network, we can add a directed link with a meaning label. Users can look at the information and their relationships via a semantic-network browser.
Users have their own knowledge set, which can have links to other members knowledge sets.
If users find related information in other members knowledge, they can make a link to the node. All components are implemented as cgi scripts in a WWW server by Perl script language. The whole semantic-network in the URL management server is regarded as a group knowledge. It helps to visualize the difference between two categories of knowledge by analyzing the common URL information included. We use the concept of 'view point' to represent a semantic-network.