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。