这是重要的，因为系统测试有时为该迭代并行地开发测试应用程序及产品功能。

This was important because system test was sometimes developing test applications in parallel with the product functionality for that iteration.

youdao

对可用功能的交流是至关重要的，因为每个迭代中只有三个星期是执行系统测试应用程序的设计、编码，和单元测试的。

The communication of available functionality was critical since there were only three weeks per iteration to perform system test application design, code, and unit test.

youdao

客户常常直到编码固定或者在一个正式的测试迭代过程中时才能见到应用程序，这太晚了。

Clients often do not see the application until after code freeze or during a formal beta cycle, which is too late.

youdao