In the 3rd post in this series, we looked at how we prepare data for use with a concept called the Business Data Vault. Now, in this final part, I will show you the basics of how we project the Business Vault and Raw DV tables into star schemas which form the basis for our Information Marts. Raw Data Mart vs. Information Marts As of Data Vault 2.0, the terminology changed a bit to be more precise.
In my last post, we looked at the basics of modeling your data warehouse using the Data Vault 2.0 technique. This time, we get into the details of how we prepare the DV tables for business user access. What is a Business Data Vault? If you have done any investigation into Data Vault on various blogs or the LinkedIn discussion group, you have seen a few terms used that often cause confusion.
In my last post, we looked at the need for an Agile Data Engineering solution, issues with some of the current data warehouse modeling approaches, the history of data modeling in general, and Data Vault specifically. This time we get into the technical details of what the Data Vault Model looks like and how you build one. For my examples I will be using a simply Human Resources (HR) type model that most people should relate to (even if you have never worked with an HR model).