Service-oriented architectures (SOA) and, in particular,Web Services designs are currently widely used for the development of open, large-scale interoperable systems. In those systems performance, security and trustability are challenging open issues. As regards performance, in Web Services designs, abstraction layers completely hide the underlying system to all users, and classical techniques for system optimization (such as ad-hoc tuning, performance engineered software development, ...) are not applicable. As far as security is concerned, the need of trust mechanisms in open environments is a well-known problem, widely discussed in the literature, but few techniques for security evaluation are available. In this paper we propose an integrated solution to optimize performance and to guarantee security of Web Services architectures. The proposed solution is based on a framework, MAWeS, which adopts simulation in order to predict system performances and adopts policies for security description and evaluation.
['Valentina Casola', 'Emilio Mancini', 'Nicola Mazzocca', 'Massimiliano Rak', 'Umberto Villano']
Building autonomic and secure service oriented architectures with MAWeS