Apache ODE

Apache Ode (Orchestration Director Engine) is an Apache incubated project to develop an open-source, Apache-licensed, implementation of the WS-BPEL 1.1 and WS-BPEL 2.0 (draft) specifications. Ode is a choreography engine allowing you to develop processes to call services in a well-defined manner. Using XML (BPEL) you define when and how your services are called, which messages get sent and how the messages are composed.

Features

• Side-by-side support for both the WS-BPEL 2.0 OASIS standard and the legacy BPEL4WS 1.1 vendor specification.
• Supports 2 communication layers: one based on Axis2 (Web Services http transport) and another one based on the JBI standard (using ServiceMix).
• High level API to the engine that allows you to integrate the core with virtually any communication layer.
• Hot-deployment of your processes.
• Compiled approach to BPEL that provides detailed analysis and validation at the command line or at deployment.
• Management interface for processes, instances and messages.
• Small footprint server suitable for experimentation or single-server production use.

http://incubator.apache.org/ode/