完整源代码是唯一真正精确的设计工件，这表明一群人合作开发一个软件项目就是一个协同设计实践。
The complete source code is the only truly accurate design artifact, which suggests that working on a software project with a group of people is a collaborative design exercise.
另外还有欠缺的就是在应用程序间完整的整合和协同。
Also lacking was full integration and collaboration between the apps.
需求验证必须与终端用户协同执行，以暴露和改正不完整或不正确初始模型的所有问题。
Requirements validation must be performed in collaboration with the end users, to reveal and correct any problems with incomplete or incorrect initial models.
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