6. Discussion
CAS enables the designer in engaging in a continuous
design loop iteration that synchronizes the design problem
space with the design solution space at a much more rapid
pace than without it. Furthermore, the designers have
control on the knowledge (e.g. equations, rules of thumb,
constraints) used by CAS tool to generate solutions, as the
system offers the possibility to add, remove and reformulate
it by the user. As a result, CAS supports solution space
generation, continuous design iteration and generationknowledge
control.
These three properties lie at the core of Lean Design’s
Set-Based Concurrent Engineering and Just In Time
Decision Making. By generating sets of possible solutions,
conflicting design criteria can be assessed concurrently and