Build/test/fix-why Reactive problem solving Too little- limited scope of solutions Too late Design contains many unsolved problems Biggest problem is lack of robustness System works well in favorable conditions But is sensitive to noises -unfavorable conditions that inevitably occur 9 C Don Clausing 1998Build/test/fix – why? • Reactive problem solving – Too little – limited scope of solutions – Too late • Design contains many unsolved problems • Biggest problem is lack of robustness – System works well in favorable conditions – But is sensitive to noises – unfavorable conditions that inevitably occur Fig. 9 © Don Clausing 1998