The preference DEA model is put forward based on the traditional DEA model to solve the comprehensive evaluation,and to solve the same efficient DMU with the average cross-efficiency.

• 在对传统DEA模型修正的基础上,提出了应用偏好序DEA模型来对信息系统综合评价,并提出用平均横切效率来解决同为有效决策单元的对比问题。