Knowledge Acquisition and Knowledge Engineering in the ModPlan Workbench

In this paper we present the architecture and the abilities of the ModPlan Workbench; an interacive knowledge acquisition and engineering tool for AI planning. It provides automated domain analysis tools together with PDDL learning capabilities. Integrated optimal and suboptimal planning technology extends state-of-the-art technology. With the tool, domain experts assist solving hard combinatorial problems. Approximate or incremental solutions provided by the system are supervised. Intermediate results are accessible to improve domain modeling and to tune exploration in generating enhanced plans, which, in turn, can be bootstrapped for domain description inference.