[rules-users] New Questions about drools

Hi There! I have been reading some more about Drools, Guvnor, and JBPM5, and I have a few new doubts, that I couldn't get solved from the documentation I read. And here they are: 1) When rules are entered through the UI are they immediately added to the rule base? 2) Does the edit UI require code to define new entities and associated metadata? 3) What would our interface look like if we called it as a service for only rule evaluation? 4) What is the rule scoping mechanism. That is, how do I say "evaluate this set of information against ruleset Q"? 5) I'm concerned about the "then" clause. It looks like it is always code. If our "then" always consists of assignments to some set of variables or parameters, what does the person writing rules see? 6) Can I define a new workflow and connect it into some dispatcher for invokation without writing any code and without stopping or upgrading the app? Thanks for your help. Carlos S. Moreno