Found one facility will enable the delivery of design advice on-line to the designer as new definitions are being created. Backing up this geometry engine, a container object management system will be produced that extends the proven composite object capabilities by integrating geometry concepting and manipulation primitives into the basic object definition and inheritance lattice operators. As an initial manufacturability, reliability, and maintainability capability, the baseline system will include a manufacturability checker, an associated generative process planning system, and an engineering performance model development environment.