Service Trading Using Conceptual Structures

An open distributed environment can be perceived as a service market where services are freely ooered and requested. Any infrastructure which seeks to provide appropriate mechanisms for such environments has to include some mediator functionality to bring together matching service requests and service ooers. The matching algorithm that the mediator must perform commonly builds upon an IDL{based type deenition for service speciication. We propose a type speciication notation based upon conceptual graphs to support the cognitive domain of application users. In our framework the trader implements a matching algorithm as well as a learning algorithm which are tailored to service trading in open environments.