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Service offer discovery in the SWS challenge shipment discovery scenario

Abstract:

In this chapter we describe the experience of applying our Service Offer Discovery approach to the SWS Challenge discovery scenario. At the early stage of the SWS Challenge initiative we have discovered a gap between coarse-grained conceptual frameworks of WSMO or OWL-S and fine-grained modeling requirements for search requests and service descriptions arising at the level of realistic and complex discovery scenarios. Our observations and experience resulted in a number of extensions of the original WSMO model. Our discovery approach operates on fine-grained service offer descriptions dynamically created for individual service consumers. Descriptions of service offers contain fine-grained details of service capabilities which are often input and context dependent. In order to deal with input-dependence of service capability we introduce rules and data-fetching interfaces as part of service descriptions. We focus on the lesson learnt from applying our approach to the SWS Challenge discovery scenario. We compare our approach along different structural dimensions to other solutions to the same scenario, namely: jABC/miAamics, SWE-ET and DIANE.