如果在此阶段测试客户鉴别出关键的可用性或丢失的功能，那么您就面临困难的决策：发布带有关键缺陷的版本，还是推迟发布重新设计。
If the beta customer identifies critical usability or missing functionality at this stage, you have a difficult decision: release with the critical defect or delay the release in order to redesign.
低可用性值可能表示相对于非功能需求而言，资产中存在缺陷。
A low availability value may indicate a defect in the asset with respect to nonfunctional requirements.
现今歉收的组织经常对在添加新特性、扩展到新平台、修正积压的缺陷，和提高可用性中摇摆不定并保持平衡而困惑。
In today's lean organizations, confusion constantly ensues from juggling and balancing among adding new features, expanding to a new platform, fixing the backlog of defects, and improving usability.
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