Business layer

In this layer, we are not limited by the constraints of the actual physical tables in the database. We can restructure and consolidate sources that will inform the BI server on how to best handle the end user requests. Most of the metadata that affects SQL production by the BI server is handled in this layer.

Business model

The business model is the highest level in this layer and it contains a business view of the physical schema. You should be able to simplify the physical schema so that in the end you get to look at the business view of the data. Anything we do in this layer will not affect the work that has been done in the physical layer, but we can create multiple models based on the same physical sources.To create a business model, right-click on the Business Model and Mapping pane in the middle and choose New Business Model. Then, we are prompted to give the model a name, as shown in the following screenshot:

We will name our model as AdventureWorkBM, and will keep...