The assets (rules, processes, etc.) you create in Guvnor are available through various mechanisms like:
- HTTP Request
- Webdav
- REST API
You can take a look at the documentation to see how this works: http://docs.jboss.org/drools/release/5.3.0.Beta1/drools-guvnor-docs/html_single/index.html#d0e1629
What people usually do is to Compile the package where all the assets are ing Guvnor and then use that package in your applications using kbuilder.add().
Another way is to use jbpm-gwt-console as runtime for your processes. In this case, jbpm-gwt-console will connect to Guvnor to retrieve all the processes from it.