采用了“RUP精神”的项目中，相关利益方和项目研究团队成员清楚，随着他们了解更多，需求可以而且应当变化和改进。

In projects that adopt the "spirit of RUP," stakeholders and project team members understand that requirements can and should change and evolve as they learn more and more.

youdao

但是这也有好的一方面，这发生在项目的先启阶段，这时候能让相关利益方调整他们的期望。

The good news is that this happens early in the project, so there is time to adjust stakeholders' expectations about what is possible.

youdao

但是我通常不会解释其实这些项目的一些功能经常会和相关利益方原来希望的不同。

What I don't always explain is that the features these projects actually deliver typically vary from the stakeholders' original expectations.

youdao