Nowadays, most of the approaches for compositions of web services are focused on feasibility of implementation#R##N##R##N#rather than on satisfying business concerns. Meeting business concerns also demands flexible and agile#R##N##R##N#implementations. We present an approach for service composition based on the lifecycle of e-contract. Econtracts#R##N##R##N#have clauses and rules that express business concerns on how services are offered and consumed.#R##N##R##N#We propose an architecture that enables the automation of implementation of composite services. The automation#R##N##R##N#is on the configuration of web service engines. The architectural model supports the publication of#R##N##R##N#contracts that describe how services are offered from different providers in order to develop the composition#R##N##R##N#of services.
['José Bernardo Neto', 'Celso Massaki Hirata']
e-Business Architecture for Web Service Composition based on e-Contract Lifecycle