For each requirement that contains multiple necessary states from now and into the future, a requirements analyst opens a change request record representing a review activity.

对于每一个包含从现在到将来多种必要状态的需求，需求分析师打开一个变更需求记录就代表着一个评审活动。

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As soon as a pair realizes that there is an additional requirement during the course of an activity, they can update the card and get back to their activity.

当结对编程的人员在某项活动中发现新的需求时，他们可以更新卡片，再回到之前的活动中。

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Requirement: Produce a work product at the wrap-up of a repeatable activity.

需求：在一个可重复活动的包装上生产一个工作产品。

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We agree there was minimal economic activity, but we find no requirement that an Arizona business engage in a certain level of activity.

FORBES: Family Limited Partnership Needs To Have Partners - Plural

For two-parent families the requirement is even stiffer: 75% must be in some form of work activity by the end of this year, and a full 90% by 1999 and thereafter.

ECONOMIST: Welfare reform

The problem with the Obamacare requirement that individuals buy health insurance is that it penalizes them for not engaging in activity, Vinson writes.

FORBES: Florida Judge's ObamaCare Ruling Passionate, If Futile