If you are a member of The Data Warehousing Institute, be sure to check out the April 1, 2010 issue of Flashpoint.
My article The Hidden Value of Dimensional Design explains how you can use dimensional design to cultivate a shared understanding of project scope between business and technical personnel.
This publication is only available to TDWI members.
If you are not a member (or if you want to read more on the topic) have a look at this blog post I wrote in 2007: Drive Warehouse Strategy With A Dimensional Model.
- Chris