Without thorough planning, program control, and design reviews, these tasks are virtually impossible to accomplish without errors or leaving important aspects undone.

如果没有全面的计划、程序控制和设计评审，那么能够在不犯错或者重要的方面没有遗漏的情况下完成这些任务几乎是不可能的。

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Then, the dissertation studies a planning optimization problem for design tasks supporting teams and roles according to the task groups produced after project planning.

针对项目粗细规划后得到的一系列任务群，论文研究了面向角色和团队的设计任务优化配置问题。

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