We can use Topic Maps help organize and retrieve online information in a meaningful way. They play the same role as indexes play in books, and that thesauri play in editorial consistency management and can be used to capture the information traditionally stored in databases. Topic Maps aim to dramatically enhance the efficiency with which we can find the information we need. While XML tags are directly inserted inside the information source, a topic map is a hyperlinking layer built above electronic information sources. XML information sources are by their nature, static and cannot be dynamically updated when the topic network is required to change.
Topic maps work in a layer above the data source and can add flexibility to knowledge management.
Information sets do not have to change in any way as numerous topic maps are applied to them to create new knowledge bases. There are many reasons for regarding Topic Maps as an important development. Here, we just mention some of the most economically significant ones. Topic Maps fulfill a universal need to associate information to form the information networks that make up a knowledge base. Topic Maps are both powerful and simple.