Extending OWL-S for the Composition of Web Services Generated With a Legacy Application Wrapper
This addresses web service composition issues for developers in the NeuroLOG project, but it is incremental as it builds on existing standards like OWL-S.
The paper tackles the problem of web service composition hindered by nonstandard WSDL from legacy application wrappers, proposing extensions to OWL-S to enable semi-automatic composition and consistency checks for services generated by the jGASW wrapper in the NeuroLOG project.
Despite numerous efforts by various developers, web service composition is still a difficult problem to tackle. Lot of progressive research has been made on the development of suitable standards. These researches help to alleviate and overcome some of the web services composition issues. However, the legacy application wrappers generate nonstandard WSDL which hinder the progress. Indeed, in addition to their lack of semantics, WSDLs have sometimes different shapes because they are adapted to circumvent some technical implementation aspect. In this paper, we propose a method for the semi automatic composition of web services in the context of the NeuroLOG project. In this project the reuse of processing tools relies on a legacy application wrapper called jGASW. The paper describes the extensions to OWL-S in order to introduce and enable the composition of web services generated using the jGASW wrapper and also to implement consistency checks regarding these services.