The dimensions of this problem are well known, yet little understood. That is why getting SAP BW InfoCube Dimensions modeled correctly is a challenging and complex task.
We have prepared a SAP BW Dimensional Modeling Guide to help you with the challenges of SAP BW dimensional modeling process.
In this dimensional modelling tutorial, we cover key aspects of:
Compound Keys
Aggregates
Line Item Dimensions
Using Demographic Characteristics
Categorization During Runtime
Time Dependency as a Categorization Characteristic
Dealing with Historical Data Changes
Dealing with slowly changing dimensions
Partitioning to improve performance
Degenerated Dimensions
And many other subjects
Of course, not all of these data warehouse dimensional modeling tutorial techniques apply to all modeling situations, and your particular use case will dictate which combination of these techniques are required. That is why we recommend a review of your existing system when you are suffering performance issues. It is also the only way to fully exploit the SAP Business Content, the key competitive differentiator of SAP Business Warehouse.
This is a follow-on to our first guide, SAP BW Data Modeling, which introduced you to the subject of InfoCube design. For those of you with some SAP BW Data Modeling background, these may be just a good review.
However, as we took the original information an enhanced it with real world experience, we think you may still learn something from it.
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