Globals are application data that is made available to the engine, so you need to set it from outside of your rules: workingMemory.setGlobal( "assignee", theAssignee ); By the way you wrote your rules bellow I think you are misunderstanding something. If you want some help, maybe you can write your rules in english for us to understand what you want to do. The facts you will reason over, need to be asserted into the engine. So maybe what you need is something like: rule "get_the_assignee" when not PhysicalPerson() then PhysicalPerson assignee = new PhysicalPerson(); assignee.setId(new Long(007)); assert( assignee ); Tools2.traceSomething(assignee.getId()); Tools2.traceSomething("get_the_assignee"); end rule "check_the_assignee" when assignee : PhysicalPerson() then Tools2.traceSomething("check_the_assignee"); Tools2.traceSomething(assignee.getId()); end Hope it helps. []s Edson fanory wrote: -- Edson Tirelli Software Engineer - JBoss Rules Core Developer Office: +55 11 3124-6000 Mobile: +55 11 9218-4151 JBoss, a division of Red Hat @ www.jboss.com