Integrated engineering analysis process with solution feedback

In highly complex engineering situations where the final product or design has a numerous amount of interrelated mechanical parts and/or functions, the engineering design process consists of a plurality of independent modeling problems wherein the solution of each of the modeling problems is determined by running a series of simulations or solving a series of problems whereby the solution of the first simulation and/or problem is inputted into the next simulation and/or problem until the variance between the last solution and the second to last solution is at a minimum and/or within predetermined tolerances. An integrated engineering analysis system that determines at least one final output value in response to at least one initial input value. A first subprocesses provides at least one output value in response to the initial input value. A plurality of subprocesses provide a plurality of output values in response to the output values of the first subprocess. The plurality of output values and the output value of the first subprocess are inputted into at least one of the plurality of subprocesses. A command code executes each of the plurality of subprocesses in response to the output values and determines which one of the plurality of subprocesses to run and a final subprocess provides a final output. The final output is the result of a plurality of calculations executed by the plurality of subprocesses and the command code compares the final output with the initial input.