Roll up Members for Dimensions Supporting Hierarchies

For dimensions that support hierarchies, every Dimension Member value has the property of being either a Leaf Value (Child-only or last descendant Child Value) or Roll-Up Node Value. For example, if Branch #1, Branch #2, and Branch #3 all belonged to the West roll up the point of an Organizational Hierarchy, then West would also be a dimension member value of the Organizational Unit Dimension. Your Business Data is expressed at the Leaf Level.