维度建模最重要的活动之一就是捕获聚集路径或终端用户执行上卷和下钻所依照的聚集层次结构。
One of the essential activities of dimension modeling is to capture the aggregation paths or aggregation hierarchies along which end users perform roll-up and drill-down.
Route节点和FlowOrder节点之间的主要区别在于，支持同步分支执行的输出终端数不同，性能方面也可能不同。
The main differences between the Route and FlowOrder nodes is the number of output terminals supporting synchronous branch execution and possibly performance.
需求验证必须与终端用户协同执行，以暴露和改正不完整或不正确初始模型的所有问题。
Requirements validation must be performed in collaboration with the end users, to reveal and correct any problems with incomplete or incorrect initial models.
应用推荐