about processes and engines

OpenWFEru 0.9.14 released

flow.pngJust released OpenWFEru 0.9.14. The formal announce is visible here, in the users mailing list.

It’s also the first release of Densha, an Ruby on Rails web application that wraps an OpenWFEru workflow/bpm engine instance and extends it with a worklist system (users, groups, permissions, task lists). There is an online instance visible at

The demand for a Rails integration was immediate when the first releases of OpenWFEru came out. There have already been integrations of OpenWFEru within Ruby on Rails web applications, like for example GeoBPMS, but this one is a kind of showcase / example.

The nicest feature (imho) is the process definition rendering system, it draws process definitions, XML or Ruby, indifferently. It will get nicer in future releases, and you’re free to customize its CSS. I have also made sure it’s usable outside of Densha, for other web applications leveraging OpenWFEru.

There is a basic/generic form system for manipulating the workitem payload (task information) with hooks for plugging your own [rails] forms (on a task basis), but I shall blog about that later.

Many thanks to Juan Pedro Paredes who drove the implementation of the ‘engine administration’ screen, where you can pause, resume and cancel business process instances and also view process errors and restart after them if possible.

And of course, it’s far from perfect, the bug tracking system is ready as well as the users’ mailing list.

Written by John Mettraux

September 18, 2007 at 9:42 am

Posted in bpm, bpms, openwferu, rails, workflow

2 Responses

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  1. congratulation. It’s nice to see this coming along in the rails world.
    A nice breeze of fresh air in the workflow world!


    September 18, 2007 at 9:48 am

  2. Hi Nicolas,

    thanks for your help and all the work you did for “OpenWFEru on JRuby”. Congrats for your new job in the BPMS world.



    John Mettraux

    September 18, 2007 at 11:39 pm

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