提出一类用于分析和评价计算机控制系统性能、可靠性和经济性全面品质的综合准则，讨论了能运行性的概念．本文所指的经济性为从系统制造至运行全过程中的整体效益．针对水轮机调节系统进行了具体研究，对不同的系统结构进行了比较研究．提出的方法对优选和设计具有优良综合品质的计算机控制系统是有效的． This paper presents a comprehensive guideline for analyzing and evaluating the comprehensive quality of computer control system in terms of performance, reliability and economy. The concept of operability is discussed. This article refers to the economy from the system manufacturing to the whole process of running the overall efficiency. Aiming at the regulation system of hydraulic turbine, a concrete study was carried out, and different system structures were compared. The proposed method is effective in optimizing and designing a computer control system with excellent overall quality.