An ineffective DMU into an effective one by correcting the input-out data for the ineffective DMU is turning.It is very important to the economic decision and the production plan.

• 给出了一个非有效的决策单元，可适当地校正该单元的决策数据使之变为有效，这对于国民经济决策或计画有著重要的指导作用。