In order to cope with ill-defined problems, the designer has to learn to have the self-confidence to define, redefine and change the problem-as-given in the light of the solution that emerges from his mind and hand. People who seek the certainty of externally structured, well-defined problems will never appreciate the delight of being a designer, Jones has commented that ‘changing the problem in order to find a solution is the most challenging and difficult part of designing’”.