State of Arts UDDI, WSDL, E-speak … Limitations? State of the art service representation languages are not able to sufficiently capture the semantics of the business domain and the structure of the service (e.g., the sub-services, the parts of the services); Business process dynamics are only partially covered by current service descriptions in terms of operations (capabilities): business dynamics and policies (constraints) are lacking. Business protocols only have been treated in cursory manner thus far. The e-service repository and query language have only been partially implemented. The current service searching is only based on attribute (or name) match. More research needs to be conducted to construct a more advanced repository and searching system. Service descriptions are not based on a solid type system. This puts a severe barrier on composing e-services dynamically, as the conformance of the resulting e-service suite can not be checked at runtime. E-service searching is only based on attribute match which is not sufficient enough to deal with partial matches and semantic conflicts.