Information discovery mechanisms of web services in the UDDI registries currently are not up to mark of Industry standards. UDDI provides the interface keyword and taxonomy based search mechanism. UDDI refers exact keyword matching discovery mechanism. If the consumer searches for any keyword like "Apartment", the service provider registered under the tag "flat" will not be shown to the end user. Additionally there is possibility that existing taxonomies might not be appropriate enough, extracting very long result lists may not really help. The main issue is lack of semantics. XML Topic Maps as a representative of Semantic Web may help to improving the discovery mechanism. The present work defines the stated problem and as of my knowledge provides a new solution to the current problem. Our main aim is to show how XML Topic Maps can be used as tool to represent and organize knowledge out of specific domain, in our case bioinformatics. XML Topic Maps will give the advantages to requestor, who needs to find some location of unknown web service or resource. A prototypical Topic Map a sub domain of Gene Ontology. It will be developed and after implementation it will be shown that how the representation of knowledge can be linked to UDDI. The XML Topic Map can be navigated in different ways. It reaches the aim and discovers previously unknown resource. XTM can be used for building knowledge base mechanism. To navigate through the user need to use a particular term. Once a unique term is assigned a large number of external useful information resources is also added to it. The most important aspect is that due to the continuous evolution of Gene Ontology the XTM documentation has to be maintained permanently. At the end it was concluded that refering directly to the location of WSDN file and doing job without UDDI will not be feasible.

XLM UDDI XTM Semantic web Gene Ontology topic map.