Welcome to the YAWL User Group website yaug.org! We would like to concentrate the know-how of all YAWL users and serve as a plattform for suggestions, discussions and collaboration. YAWL is an open source BPM/Workflow system being developed by the YAWL Foundation.

Please join our community, if you would like to take part in the YAWL User Group. Please use the public forum to ask questions about YAWL or the user group itself. For any private inquiries use our contact form.

Perfomance issues in YAWL 2.1 : UPGRADE to YAWL 2.3!

YAWL 2.1 has some serious performance issues : we have been using the YAWL engine V2.1 in a scenario of about 25 users accessing the system simultaneously. We had to restart the engine
Mon, 10/08/2012 - 19:46

Free Agents and YAWL

Here is an example for the application of YAWL workflow engine, that might be a bit more unusual.

Free Agents is a cooperative team based augmented reality location based

Thu, 09/20/2012 - 11:48


WoPeD is an open source Workflow Petri Net Designer. It is developed at the Cooperative State University

Thu, 08/23/2012 - 21:50

Assignments in ARIS Business Architect 7.1


  1. The database has to run with Entire method“. For more information look up the tutorial for changing the database filter. [Picture01]

Wed, 07/11/2012 - 20:08


PERIKLES is a research initiative by Gecko GmbH and its partners with the goal to add Business Process Management technology to core value adding clinical processes. For this purpose YAWL was used

Mon, 06/25/2012 - 22:12

YAWL Projects

In this section we present projects, that have used YAWL. If you are using YAWL for some project, please let us know and we will include it in this list.


Wed, 06/13/2012 - 00:31

Try out the YAWL Android Client

Here you can find the install package for the YAWL Andoid Client.

Sun, 05/13/2012 - 23:52

How to backup a running YAWL system?

YAWL is build out of several independent web services. The two most important web services of a YAWL system are the YAWL Engine, responsible for actual workflow execution and state management, and

Fri, 04/20/2012 - 18:25

Resolution to the problem from YAC offline capabilities

In this article I want to explain how we changed YAC to cope with YAWL's architecture regarding population of task variables. Click on the article to read the full explaination.

Sun, 02/19/2012 - 19:34

Use of Conditions in YAWL

Let's see what happens to offered workitems after a condition. Will one of the offered workitems be withdrawn when the other one is started?

Wed, 01/04/2012 - 16:22