1. A model-based method for testing compliance of production devices with performance specifications of a device design, the production devices manufactured in accordance with the device design by a manufacturing process, the method comprising: developing a simple model form based on the device design and the performance specifications, the model form comprising a basis function and model form parameters for the basis function, the model form parameters being manufacturing process dependent and differing in value among the production devices; specifying a stimulus for testing the production devices; and testing each production device, the testing comprising: measuring a response of the production device to the stimulus, using the model form, extracting the values of the model form parameters for the production device from the measured response and the stimulus, and checking compliance of the production device with the performance specifications using the extracted values of the model form parameters.