Robust design - the big picture Technical report

Computer system development consists of fulfillment of two kind of constraints, functional and nonfunctional. Different traditional computer system development methods are compared in the aspect of how functional and non functional constraints are handled. It is stated that development most probable will have to be iterative and therefore further work should be focused on how to minimize the number of iterations and as a result of this the total development cost. One of the problems with less sophisticated development strategies is that they may have cheap iterations but no strategy to predict problems later on in development. The conclusions drawn are that non-functional constraints have to be handled during the whole development process and that future problems should be predicted using some kind of solution space exploration.