Power BI is one of the most compelling and complete data visualization tools available today, and thus has seen rapid user adoption over the past several years. A core tenet of Power BI development is its use of relational models. Therefore, understanding how a Power BI model may differ from data stored in less advanced technologies, such as Excel worksheets, is important.

Please watch this brief, 5-minute video as Thorogood consultant, Alaistair Jones, explains the principals of data modelling in Power BI, and how normalized data models are structured and why they are so useful when working with data at scale.