It runs the risk of turning into a never-ending circle of iteration; proposing a solution without clearly defining and agreeing upon the problem leaves you without a clear method of evaluating the fitness of the design.

• 这样会进入到死循环的危险中，即在需求没有经过明确定义和对问题是什么缺乏统一认识的情况下，你无法对提出的方案评估设计的合理之处。