Discovering pattern-based mediator services from communication logs

Process discovery is a technique for deriving a conceptual high-level process model from the execution logs of a running implementation. The technique is particularly useful when no high-level model is available or in case of significant gaps between process documentation and implementation. The discovered model makes the implementation accessible to various kinds of analysis for functional and non-functional properties. In this paper we extend process discovery to mediator services (or adapters) which adapt the messaging protocols of 2 or more otherwise incompatible services. We propose a technique that takes as input logs of communication behaviors—one log for each service connected to the adapter—and a library of high-level data transformation rules relevant for the domain of the adapter, and then returns an operational adapter model describing the control-flow and the data flow of the adapter in terms of Coloured Petri Nets – if such model exists. We discuss benefits and limitations of this idea and evaluate it with a prototype implementation on industrial size models. Keywords: Process Mining; Service Mining; Pattern Based Design; Coloured Petri nets; synthesis