Today we are going to create a very simple SSAS cube to show some of the useful things that you can do with Sql Server Analysis Services. In production or a real world scenario, you would do much more planning and analysis, but this article will show you the steps that you will need to complete. This is really the tip of the iceberg of things that you can accomplish with SSAS, so feel free to explore.
Jim Salasek's SQL Server Blog 