Rule-Based Control of Decentralised Asynchronous SOA for Real-Time Applications

• Published in: 2012 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery pp. 241 - 248
• Main Authors: Cameron, A., Stumptner, M., Nandagopal, N., Mayer, W., Mansell, T.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.10.2012
• Subjects: Adaptive systems; Computer architecture; Distributed computing; Program processors; Real time systems; Reconfigurable architectures; Sensor systems; Service oriented architecture; Weapons
• ISBN: 9781467326247; 1467326240
• DOI: 10.1109/CyberC.2012.48

In this paper we consider the core issues that are inhibiting the application of general Service Oriented Architecture (SOA) principles to distributed real-time military environments. In particular, we propose a Distributed Real-Time Service Oriented Architecture (DRT-SOA) framework intended to overcome some of the problems that distributed SOA systems face in needing to exhibit verifiable deterministic behaviour. Although the time behaviour of asynchronous systems is inherently non-deterministic, such systems offer advantages in terms of extensibility, cost and utilisation. We show that DRT-SOA presents a framework where the sources of non-determinism can be supressed, making it suitable for certain classes of real-time system. We also show that decentralised execution of complex workflows is achievable using dynamic rule-based logic. We also present preliminary results demonstrating the architecture's ability to perform decentralised execution of workflow and to resolve deadline constrained tasks. We also present results of a sensitivity analysis showing that the architectural framework is able to scale in support of dynamic redeployment of workflow. This has application when needing to adapt to changing run-time needs in the case of self-healing.