In traditional development models, testers are often treated as second-class citizens until the final "drop" moments before the scheduled delivery.
在传统的开发模型中，直到预定的交付之前的最后“失败”时刻，测试人员经常作为二等公民。
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Pressure from private shareholders, in contrast, could push postal bosses to drop expensive services that carry comparatively little benefit for customers, such as next-day delivery for business.