您经常会遇到这样的可能性，即为了在工作期限内完成任务需要收回工作，这个策略只是看起来为了达到正常发布的目的提供了最好的环境。

You always have the potential for needing to back out work to meet a deadline, but this strategy seems to provide the best environment to meet the goals of regular releases.

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看板试图通过确保上游阶段只生产下游阶段所需的零件，以达到在不同阶段之间最小化WIP(未完成任务)，或者存货清单的目的。

Kanban's aim is to minimize WIP (Work-In-Process), or inventory, between processes by making sure that the upstream process produces parts only if its downstream process needs it.

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