通过数据的采集、整理，建立企业定额，准确、及时地把握实际成本，做到事先的成本控制，准确预测利润，科学决策。
Through collection , arrangement of data , set up enterprise quota , accurate and grasping the actual cost in time , make sure the cost in advance is controlled , predict profits , science decision accurately .
事先成本控制