Hail Mary software development

A strategy of deferring things like deployment, UI refinement, and performance assessment until the end of a project is foolish. Changing the measurement of progress to be based only on 100% completed features explicitly highlights that this waterfall, hail mary, pray for success, project strategy is a sheer cliff approach. 0% progress then hopefully 100% progress right at the end. And if the end moves closer, you're hosed.