The previous sections of this manual concentrate on traditional point design evaluations using steady state and transient solutions. This section describes how to perform high-level operations to find inputs given outputs, optimize (minimize weight, maximize performance), correlate (calibrate a model to test data or reverse engineer a design), find the worst-case design scenario, estimate the reliability of a design, and optimize the design for reliability. These high-level operations use lowlevel point design operations (the realm of traditional steady state and transient analyses described in Sections 2-4) as building blocks. Therefore, the novice user should be familiar with the basic operation of the code before proceeding to this higher level of tasking.