Web services are a consolidated reality of the modern Web with tremendous, increasing
impact on everyday computing tasks. They turned the Web into the largest, most accepted …

Process-oriented composition languages such as BPEL allow Web Services to be
composed into more sophisticated services using a workflow process. However, such …

Over the last few years several process-based web service composition languages have
erged, such as BPEL4WS and BPML. These languages define the composition on the basis …

Web services provide a way to facilitate the business integration over the Internet. Flexibility
is an important and desirable property of Web service-based systems due to dynamic …

Business rules change quite often. These changes cannot be handled efficiently by
representing business rules embedded in the source code of the business logic. Efficient …

This paper makes four main contributions towards managing large collections of process
models. First, we show how flexible process variants can be configured by applying rules to …

Business processes used in networked business are often large and complex, which makes
them difficult to manage and change. In this paper we address this lack of flexibility by …

Cloud computing technologies are changing the way in which services are deployed and
operated nowadays, introducing advantages such as a great degree of flexibility (eg pay …

Standardization in Web services simplifies integration. However, it does not remove the
need for adapters due to possible heterogeneity among service interfaces and protocols. In …

Many crosscutting concerns in business processes need to be addressed already at the
business process modeling level such as compliance, auditing, billing, and separation of …