Unverified50% confidenceFactExact time
Research by Barry Boehm shows that if errors introduced during the requirements phase are not discovered until after coding, the cost of fixing them increases by a factor of 10 to 100.
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50%
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Long-term
Relevance
7/23/2026
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Related Claims
Partially VerifiedA classic IBM study shows that if defects introduced during the requirements phase are not discovered until the coding phase, the cost of fixing them is 6–10 times higher.77% similarUnverifiedResearch data from IBM and NASA shows that fixing a bug discovered during the requirements phase costs 10x to 100x less than fixing it during coding or testing64% similarUnverifiedThe later a problem is discovered, the higher the cost of fixing it, and the more modules involved, the repair difficulty and labor costs grow exponentially.64% similarUnverifiedThe earlier a software problem is found, the lower the cost of fixing it; the difficulty and labor cost of fixing bugs found in later stages grow exponentially.63% similarUnverified研究显示修复嵌入架构深层的性能问题成本是在设计阶段预防的6至10倍63% similar
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