不管需求的来源是何处，在我们做测试用例之前它都要被同意并且备份。
Regardless of the source of the requirement, it should always be agreed upon and documented before we do the test cases.
不管你意识到没有，一组需求总有一个结构。
A group of requirements always has structure, whether you realize it or not.
不管团队用以获取需求的工具以及迭代的长度，计划策略都让生产现实的迭代计划变得更加容易。
Regardless of the tools that a team might use to capture requirements or the length of an iteration, the planning game makes it easy to produce realistic iteration plans.
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