How to create a role-playing Date dimension?

I have created a date dimension Date_Dim with three levels DayL, MonthL, YearL and one hierarchy YearL-Monthy-DayL. In the fact table, I need to refer to two date dimension: Start_Date and End_Date. For the Start_Date, we can refer it to the created physical date dimension Date_Dim. For the End_date, Ralph Kimball recommended to use a role-playing dimension. That is, create a view End_Date_Vw from the dimension table Date_Dim. My question is how to create it in OWB? Should we need to define the levels and hierarchies for the view in order to leverage the query-rewrite power? How to do that? Any advice or information is appreciated.
Lushu

Balaji,
You can refer to the same dimension more than once in the design of a cube (fact table). In a star schema implementation, you just end up with multiple foreign keys to the same times dimension (table). Once you integrate with a reporting tool, you refer to the same dimension using different names. Warehouse Builder supports this in the integration with Oracle Discoverer. The user's guide tells you how to do this (see http://download-west.oracle.com/docs/html/B12146_01/integrating.htm#sthref3659).
Thanks,
Mark.

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