Introducing the Editors ======================= The development version of EMA-XPS offers graphic editors for the user-friendly input of knowledge. The editors are optimized for the concerned representations of the hybrid inference engine of Babylon2. the objectoriented means are serviced by a frame, instance, and behavior editor. Production rules are inputted using the rule editor, a prolog edi- tor enables handling of Horn clauses. Constraints are serviced by a constraint, constraint net, and a restriction editor. Additionally a task editor for building callbacks in event oriented sessions and a special editor for all the remaining constructs, not managed by one of the other editors above, are available.