SEDA4BPEL: A Staged Event-Driven Architecture for High-Concurrency BPEL Engine

Current BPEL engine products are difficult to meet the highly concurrent demands of increasing mission critical business processes application. The authors follow the ideas of SEDA and propose a new architecture for high-concurrency BPEL engine, which they call SEDA4BPEL. In SEDA4BPEL, the implementation of BPEL related web services protocols is encapsulated into four primary event-driven stages, to provide independence, isolation and modularity. They also introduce two controllers to manage excessive concurrent process instances. They present the SEDA4BPEL design and the implementation of a BEPL engine based on this architecture.