A Tailorable Environment for Assessing the Quality of Deployment Architectures

Abstract. A distributed software system’s deployment architecture can have a significant impact on the system’s properties. These properties will depend on various system parameters, such as network bandwidth, frequencies of software component interactions, and so on. Existing tools for representing system deployment lack support for specifying, visualizing, and analyzing different factors that influence the quality of a deployment, e.g., the deployment’s impact on the system’s availability. In this paper, we present an environment that supports flexible and tailorable specification, manipulation, visualization, and (re)estimation of deployment architectures for large-scale, highly distributed systems. The environment has been successfully used to explore large numbers of postulated deployment architectures. It has also been integrated with a middleware platform to support the exploration of deployment architectures of actual distributed systems