1. The method of constructing an electronic system from a set of components comprising: selecting one or more key system parameters, creating a model of the system based on component performance, performing a sensitivity analysis on the model to identify critical components and parameters of those components required to meet the key system parameters, performing tests on the identified critical components to measure the identified parameters producing a set of measurements for each critical component, associating the set of measurements with the component, assembling the system using the measurements associated with the components.