exact functional context matching for web services
Service discovery approaches, which mainly use keyword matching of service descriptions, have a low matching precision. This paper proposes an approach to increasing the matching precision by using services' functional contexts during the matching process. To enable a precise functional context matching, both the services' goals and the domain semantics are considered. For that purpose, we introduce the concept of  functional substitutability  and the proposed context matching technique uses this concept to match the underlying constraints of the functional contexts. Compared to the keyword-based context matching approach, simulation experiments showed that the (context retrieval) precision using the devised matching approach is much better and more stable against query semantic mutations.
context matching web services service discovery service matching functional matching