QA myth busting: more testing means better quality

In the third installment of the QA myth-busting series, the article challenges the notion that more testing equates to higher product quality, arguing that excessive reliance on testing can lead to inefficiencies and overlook crucial QA measures. It emphasizes that testing should be tailored to the specific context of a product, considering its complexity and associated risks, and not be based on universally applied "best practices." Examples such as leather wallets and Therac-25 software illustrate how different products require different testing strategies due to their varying complexity and risk levels. The author cautions against the law of diminishing returns in testing, where investing more resources yields fewer results, and highlights the importance of integrating QA measures like continuous refactoring and client communication. The Google Wave case exemplifies how failing to understand client needs can lead to product failure despite good build quality. Overall, the text advocates for a balanced approach, where testing is one part of a broader QA strategy that includes building quality into the product and maintaining strong client relationships.

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