Key methods during the Define stage are: Project development, Project management and Project sign-off.

这个阶段主要的方法是：项目展开，项目管理和项目完毕。

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Sightings of unidentified aerial phenomena increased, and in 1948 the U.S. Air Force began an investigation of these reports called Project Sign.

之后不明的空中现象频发，在1948年美国空军开始对这些报告进行调查，称为Sign计划。

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A spokeswoman for the Green Roadway Project says it would be a sign of hope for young people.

VOA: special.2009.06.19

One company I spoke with, Atlassian, has an impressively granular system where employees can graduate their project from hackathon demo to a multi-day prototype, which requires sign off from coworkers, to a short-term project, which requires sign off from a manager, to a major project, which requires signoff from an executive.

FORBES: How Unorthodox Business Practices Can Fuel Innovation

Last December, the video of a college-level sign language project went viral on YouTube.

FORBES: The 'Forget You' Sign Language Video Has Been Silenced

The size of the team working on the game is now close to the size of the team working on World of Warcraft (more than 140 employees), a sign that project development is in full swing.

FORBES: Blizzard On World Of Warcraft's 12 Million Subscribers, And Its Upcoming MMO Successor