1. A self service system for service enhanced resource delivery comprising a computer system for enabling entry of a query for a service and, entry of one or more user context elements, each element representing a context associated with the current buyer state and having context attributes and attribute values associated therewith, said mechanism further enabling buyer specification of relevant service selection criteria for enabling expression of relevance of service results in terms of user context, said computer system providing service response sets having services that match the buyer's query, user context attributes and user defined relevant services selection criteria; presenting the service response sets to the buyer, including expressing a relevance of each of the service sets in terms of user context to facilitate service set selection; and enabling the buyer to select and modify the user context attribute values to enable increased specificity and accuracy of the query from the buyer.