Extending OWL-S for the Composition of Web Services Generated With a Legacy Application Wrapper

TL;DR

This paper proposes an extension to OWL-S to enable the semi-automatic composition of web services generated by legacy application wrappers like jGASW, addressing issues caused by nonstandard WSDLs and lack of semantics.

Contribution

It introduces specific extensions to OWL-S to handle legacy-generated web services, facilitating their composition and ensuring consistency.

Findings

Extended OWL-S to support jGASW services

Enabled semi-automatic web service composition

Improved consistency checks for legacy services

Abstract

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.