From what I have read Acitiviti is mostly used as part of the application. We have our application on Weblogic 10.3.3 server and I don't see any documentation to set-up Activiti (Explorer) on it. Ours is a Production system so I can n't take risks, unless there is standard documentation. In that light I was wondering If we can externalize the Workflows and keep them on Tomcat and Our application services on weblogic talk to Workflows on Tomcat. Any recommendations?
You can use the activiti REST-api for that out of the box, you're app on web logic can just consume the REST-services. if custom behavior is needed, you can always create your own REST/remote communication with an app running on tomcat, embedding the Activiti API.