A systematic approach for composing general middleware completions to performance models

A software design often does not describe the software infrastructure it will need to run, but a performance analysis must account for its effects. "Performance completions" represent the infrastructure and must be incorporated in the application performance model. This paper considers completions for middleware. It proposes a unified framework for describing all kinds of middleware in the Layered Queuing Network (LQN) model, based on a generic template and elaborations for middleware features. The template is applied to several common request-reply middleware systems. A process is given for building a new middleware completion model and for incorporating it into a LQN model