For every development phase in which a performance defect is not detected, it becomes 80 to 1000 times more expensive to remediate.
对于其中的性能缺陷没有检测到的每个开发阶段，补救成本将高达80到1000倍。
If the defect is not detected until the maintenance phase, it can cost up to 200 times more to correct it than it would have during the requirements phase. 2.
如果这个缺陷直到维护阶段才发现，那么修正它所花的成本比需求阶段修正的成本高200多倍。
We detected no defect in the product.
我们未检测出产品有任何缺陷。
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