When any enterprise development on ROR is evaluated , one of the important point of evaluation is support or availability of proper workflow engine meeting XPDL/WF-XML as per WFMC Standards
Please refer http://www.wfmc.org/
In java there are many open source workflow engines which you can integrate with your application bur Rails has none of equivalent standard
There is some work in this direction like http://lunchroom.lunchboxsoftware.com/articles/2006/01/21/acts-as-state-machine but it is far away from enterprise requirements and really is not build on WFMC Standards
Actually Rails is so well suited for such Workflow based enterprise development or following the workflow patterns (Information Systems IE&IS) due its MVC architecture
Some Workflow engines available in Java can be used like
http://web.openwfe.org/display/openwfe/Home
Has ruby connector but core rails workflow engine will be always preferable or integration in rails will be preferable
I request that the workflow engine should be incorporated in core RAILS and could be something like Bonita of ObjectWeb (http://bonita.objectweb.org/)
Regards ,
AJIT DIXIT
