A key design decision is the grain of aggregate tables.
一个关键设计决策是汇总表的粒度。
2
It is rather difficult to aggregate individual preference into group's when we are making group decision with multiple objectives.
由于决策者的个人偏好效用难于进行比较和归并,使得多目标群决策问题成为难题。
3
Yet for the most part models of aggregate phenomena in management science and economics are not consistent with such micro-empirical knowledge of individual decision-making.