you can integrate a BPM model into an existing WebML model.
With reference to the steps described in the following article, of which I briefly quote the first steps:
1) open the WebML project
2) in the Outline View, right click on the ""Project"" node -> ""Synchronize BPM to Web Project...""
3) follow the wizard steps: select the BPM Project you wish to synchronize with the WebML Project, click Next (to see the changes that will be applied to the project) and then Finish.
In the WebML Project some new elements will appear, for example new entities, new modules,...
In order to integrate the BPM functionalities inside the Web Project, you need to perform the following additional steps:
1) remove the Control View, which is useless
2) use the BPM Units to control your BPM Process. For example the ""Start Process Unit"" will start the BPM process.