Tool support for model-based engineering of Web service compositions

Abstract

In this paper we describe tool support for a modelbased approach to verifying compositions of web service implementations. The tool supports verification of properties created from design specifications and implementation models to confirm expected results from the viewpoints of both the designer and implementer. Scenarios are modeled in UML, in the form of Message Sequence Charts (MSCs), and then compiled into the Finite State Process (FSP) algebra to concisely model the required behavior.BPEL4WS implementations are mechanically translated to FSP to allow an equivalence trace verification process to be performed. By providing early design verification and validation, the implementation, testing and deployment of web service compositions can be eased through the understanding of the behavior exhibited by the composition. The tool is implemented as a plug-in for the Eclipse development environment providing cooperating tools for specification, formal modeling and trace animation of the composition process.

Translating Message Sequence Charts to other Process Languages Using Process Mining

“…Hence there is no real synthesis in the sense of deriving a process model from example scenarios. This holds for many other approaches, e.g., several authors assume "state conditions" or similar concepts to make the linking of MSCs explicit [16,28]. In a way, sets of scenarios are explicitly encoded in high-level MSCs.…”

“…Moreover, the majority of approaches uses explicit annotations to "glue" MSCs together in a single model. For example, high-level MSCs are being used [16,27,28] or there are "precharts", "state conditions" or similar concepts to explicitly relate MSCs [11,20,21]. Other problems are related to performance, implied scenarios (i.e., the model allows for more behavior than what has actually been observed), and consistency (e.g., the synthesized model contains deadlocks) [6,7].…”

Adapt or Perish: Algebra and Visual Notation for Service Interface Adaptation

“…Translations from BPEL process definitions to FSMs have been studied in the literature, see e.g. [6].…”

Let’s Dance: A Language for Service Behavior Modeling

“…Foster et al [10] suggest the use of Message Sequence Charts (MSCs) for describing global service interaction models. These global models are converted into local models expressed as FSMs for analysis purposes.…”