关键词: 决策系统, 粒计算, 决策规则, 决策

Abstract: By defining formulas in a decision system, granules and granular computing are introduced. This helps to bring about a connection between the decision system and granular computing, and to obtain the condition partition which corresponds to the decision system. On the basis of granular computing, the decision system is divided into some sub-systems, each of the sub-systems is based on a block in the condition partition. A decision can be transferred from the decision system to a sub-system, which has simplified the decision process. To deal with the incomplete decision, a sub-system can be subdivided into smaller sub-systems, so that the incomplete decision is decidable in a smaller sub-system. Making a general survey of this paper, the data processing method is connected with granular computing.

Key words: decision system, granular computing, decision rule, decision