Http://openwfe.sourceforge.net/index.shtmlopenwfe means open source workflow engine.
This Engine is implement in java. It is available under a revised BSD License.
OpenWFE not only features a workflow engine, but also a full Business Process Management Suite.As released, it features a Worklist component for storing workitems (tasks) for participants and a Reactor component, for automatic participants.It also features Droflo, a web based Flow Designer.OpenWFE Doesn't Require Any Application Server, Just A 1.4.x Java Development Kit.
OpenWFE-DOTNET IS A C # Written Library for People Developing on The .NET Platform. It allows the access an openwfe rest worklist to participate or a launch a flow.
OpenWFE-Pyya is The Equivalent Written in Python.
Workflow Definitions Are Expressed IN OUR OWN LANGUAGE, WHICH IS EXTENSIBLE. AN XPDL Filter Is Under Work: IT Will Allow OpenWFE To Interpret And Use Xpdl Defined Business Processes.