系统效能指数和效能因子的计算模型与方法

基于系统行为过程的效能概念框架及度量方法,建立了系统目标树的层级模型以及反映系统内、外因素行为关联关系的系统贡献度模型,根据该模型推导出了一组系统效能指数和效能因子的计算公式,通过对系统内外因素状态变化对系统效能贡献度影响的过程分析计算,验证了所建立的模型和方法的合理性.所给出的通过系统行为贡献度模型求解系统效能指数和效能因子的方法.可以简称为贡献度模型法,或SEIF(System effectiveness index and factor)法,适用于对系统效能变化规律的分析和实际运行效能的量化评估.

Computational model and method for system effectiveness index and factor

Based on the conceptual framework and measurement method of system effectiveness developed via behavior analysis, this paper presents a layered model of objective tree and a contributory model characterized the behavior relationship between inner and outer elements of system. A set of computation formula is derived from the models which can be used to calculate the system effectiveness index and the system effectiveness factor. The contribution of inner and outer elements to the system effectiveness are discussed, which shows the reasonableness of the models and method. The methodology presented in this paper can be called contributory model method, or SEIF (System effectiveness index and factor) method, can be applied to the analysis and evaluation of system effectiveness.