The relation between grey relational decision making and grey situation decision making under appropriate conditions

The relation between grey relational decision making and grey situation decision making is pointed out in this paper, which broadens the train of thought to define the relational degree, effect measure, uniform measure, incidence coefficient. Further, we analyze the substantial cause that the incidence order is changed with nondimensionalization in grey incidence analysis. At the same time, we point out two kinds of common processing methods (unitization of initial values and zeroization of initial points for row vectors) both are unreasonable.