Recently I have begun to add logic to the web app, so that one can attach a PDI Transformation to a project. This way, the user does not have to type in the field names available and also the type of field (String, Integer, etc) does not need to be specified manually.
The task turned out to be more complicated than I had thought. The major problem is, that the web server running the Business Rule Maintenance Tool will need to contain the plugins that are used by the transformation. Otherwise the list of field names that are used by the rule engine step can not be retrieved - an exception is thrown.
Other than this, I have progressed well. The user will upload a transformation to the web server and it will find the list of fields available for the rule engine step. I still need to work a little bit on the workflow inside the web app and enhance and implement the error handling.
I am planning to release the version at the end of January.