WS-BPEL Process Compiler for Resource-Constrained Embedded Systems

Process management and workflow systems play an important role in the composition of services in business as well as automation environments. Processes are designed using tools and deployed on a process management engine which control their execution. Unfortunately, the extensive requirements of process management engines on the underlying hard- and software often exceeds the limits of the resources of embedded systems in terms of memory and processing power. This paper proposes an approach of compiling processes to executable programs with very small footprints which can also be run on embedded systems with limited resources. This approach uses the WS-BPEL 2.0 specification for designing the process, XSL transformation and the Apache Axis2 Java architecture for the code generation being flexible and adaptable to future extensions and enhancements of WS-BPEL.