One or Multiple Analysis Services Cubes?
Chris Webb takes on this topic in a recent blog post: http://cwebbbi.spaces.live.com/blog/cns!7B84B0F2C239489A!7728.entry.
His discussion is a summary of a longer discussion on MSDN forums:
The issue is important for data mining, since in my recent blog post, I commented on data mining dimensions and data mining cubes. You can click this link for the MSDN how-to on this topic; to summarize this help file, anyone can make data mining dimensions for certain data mining models, and BIDS automates a data mining cube which includes the data mining dimension and the dimensions and measures from the source cube.
Tags: data mining, design