ArticlePower BI Semantic Models in Microsoft Fabric: Storage Modes, Direct Lake, and Capacity Internals
A practitioner's guide to semantic models in Microsoft Fabric and Power BI: what a semantic model is, how Import, DirectQuery, Composite, and Direct Lake storage modes differ, the live-connection and row-level-security model, best practices for large models and XMLA tooling, and the capacity memory-management internals that govern query performance.