The division of the test effort involved into time-boxed iterations, as under the agile methodology, ensures continued validation of the product changes and an improved fix pack delivery.

在敏捷方法领导下，将相关测试工作分割到定时迭代中，可确保持续验证产品变更、确保交付改进的 Fix Pack。

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The product validation relies on the test of real sample, which has a low efficiency and a high cost.

产品验证依赖于对实物样品的测试，使产品开发周期长，成本高。

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In the case of validation, recovery, toxicity of the dilution medium and sterility (negative test) are examined to guarantee the suitability of the test in the presence of the product.

如果需要确认和恢复，就要检测稀释培养基的毒性和无菌性(阴性测试)以确保该测试适用于现存药品。

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