For each story pursued there should be both a “definition of Ready” (as in “Does it meet the INVEST criteria?”) and finally “a definition of Done” (as in “What conditions need to be met, what tests need to be passed, to call it a wrap?”). We find in real projects that if stories are really Ready, the team will double the speed of implementation. And if the stories are really Done at the end of a Sprint, teams can double speed again. This is one of the tricks needed to get twice as much work done in half the time.
