Design of experiments for fitting subsystem metamodels

For complex systems, traditional methods of experience-based design are ineffective: the design task must be supported by simulations. Conceptual design and system-level detailed design based on numerical simulation models is limited because of the difficulty in integrating disparate subsystem models to predict overall system behavior. A metamodel-based integration strategy allows simulation results from multiple submodels to be combined into a system-level simulation. The development of a metamodel-based integration strategy for system-level design depends on effective experiment design strategies for fitting and updating subsystem metamodels.