Creating links
Links establish a relationship that moves data from one cube to another.
When you create a link, you define the source cube from which data originates, and the target cube, which receives the data values.
Links can be implemented as either rules or processes. When a link is implemented as a rule, data is stored solely in the source cube, but is used and displayed in the target cube as required. If data changes in the source cube, the changes are automatically reflected in the target cube. However, because the data is stored only in the source cube, all edits to data values must occur in the source cube; you cannot edit data values that are displayed in target cubes through rule links.
When a link is implemented as a process, data from the source cube is copied to the target cube. After you copy data from the source cube to the target cube by running the process, there is no longer a connection between the two cubes. You can freely edit data in either the source cube or target cube.