Aiming at the defect of existent methods, GM(1,N) modeling and grey relational analysis were combined to work out system coordinating degree so that coordination analysis was made about coordinating situation of maintenance support system in a period of ten years. The result was gotten that coordinating degree of material resource as well as information resource were both not high by calculating grey relational entropy of four factors . The conclusions drawn from coordination analysis based on grey systems theory that use little samples were reasonable.%针对已有的协调度计算方法的不足,结合灰色系统理论的GM(1,N)模型和灰色关联分析,提出了基于灰色系统理论的协调度计算方法,对维修保障系统十年间的协调发展情况作以分析；并通过计算各因素的灰关联熵和系统综合协调度,得出了系统的信息资源方面和物质资源方面与系统其他方面发展缺乏协调性的结论.证明应用灰色系统理论建立基于小样本数据的模型进行的协调性分析可以得到较为准确合理的结果.
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