“One size fits all” does not exist. Expanding or reducing your definitions of “done” to three may help if you and your teams are struggling with handoff points, transition requirements or criteria for your projects and programs, or hearing team members and other stakeholders say, “Oh, I thought you (they) meant …” or words to that affect.
The effort required to create your project’s definitions of “done” will be a lot smaller if those definitions promote synergy and enable everybody involved to think of everyone contextually as “a team.”
And finally, saying “done,” “done-done,” and “done, done, and done” is fun—just as work should be.
 Third reference for IBM developerWorks citation