Toward Trustworthy Web Services Coordination

In this chapter, the authors present an overview of recent works on enhancing the trustworthiness of web services coordination for business activities and transactions. The approach is based on what they call application-aware Byzantine fault tolerance. They argue that it is impractical to apply general-purpose Byzantine fault tolerance algorithms for such systems in a straightforward manner. Instead, by exploiting the application semantics, much lighter weight solutions can be designed to enhance intrusion tolerance and, hence, the trustworthiness of systems that require web services coordination.