The Art and Science of Data Modeling in Power BI

A data model is essential for structuring, organizing, and optimizing data in a way that makes it useful for analysis and decision-making. It defines how data is stored , related , and retrieved , ensuring consistency, accuracy, and efficiency in reporting and analytics. A well-structured data model is the foundation of any efficient data-driven system. It enhances performance , ensures accuracy , reduces redundancy , and provides a clear framework for reporting and analytics in tools like Power BI, Azure, and SQL databases. Data Model provides a blueprint for databases, defining entities, attributes and relationships. Data Model categories in three different types : Conceptual Data Model β Business-focused, high-level view. Logical Data Model β Defines data structure and relationships. Physical Data Model β Implementation in Power BI with calculations and optimizations. 1. Conceptual Data Model (Business-Level Understanding) What it is: - A high-level representation of b...