WfMOpen is a J2EE based implementation of a workflow facility workflow engine) as proposed by the Workflow Management Coalition (WfMC) and the Object Management Group (OMG).
...dedicated into Java open source projects
The Taverna project aims to provide a language and software tools to facilitate easy use of workflow and distributed compute technology within the eScience community. As a component of the EPSRC funded myGrid project, Taverna is available freely under the terms of the LGPL.
Bossa is a workflow engine written in Java. The engine is very fast and lightweight, uses a very expressive Petri net notation to define workflows, does not require a RDBMS and is very simple to use and to integrate with java applications.
The Open for Business Workflow Engine is based on the WfMC and OMG spec; (See the related documents for information on these specs.) it is a member of the Services Framework, and is tightly integrated with the Entity Engine. It uses the entities found in entitymodel_workflow.XML for definition information and entitymode_workeffort for runtime storage. All changes to a process or activity are persisted real-time. Therefore, the engine does not run in a thread, it is simply a group of APIs and common objects which handle the flow. When a change to the workflow is made, the engine then processes that change. When finished, the engine returns. Hence, if the application does crash, or the system reboots, the workflow will continue right where it left off upon restart.
AntFlow is a tool for the automation and scheduiling of data system tasks, including those with complex dependencies and workflow logic. Antflow represents a new approach to simplifying system automation that leverages pipelines of hot folders chained together to perform a given task. Using XML, Antflow associates an automated task, such as data transfer, compression, or encryption, with a directory on the local system. Whenever a file is copied or written into the hot folder, the associated task is executed and the file is moved to the next hot folder in the pipeline for further processing.
JawFlow is a Workflow Engine partially conformal to WfMC (www.wfmc.org) directives, completely written in Java using JMX technology. It understands XML Process Definition Language (XPDL) and can be customized using activities written in Java or in any scripting language supported by BSF
Bonita is a flexible cooperative workflow system, compliant to WfMC specifications, based on the workflow model proposed by the ECOO Team, which incorporates the anticipation of activities as a more flexible mechanism of workflow execution. Bonita is Open Source and is downloadable in LGPL License.
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