In Power BI, what does the term "data models" refer to?

The term "data models" in Power BI refers to a collection of data structured for analysis. A data model acts as a framework that organizes information from different data sources in a way that enables efficient calculation, querying, and visualization. It typically includes relationships between different data entities, measures, calculated columns, and hierarchies that help in carrying out in-depth data analysis and insights.

Data models are essential in preparing and managing data so that it can be effectively utilized to create visualizations and reports. They serve as the backbone of Power BI analytical capabilities, allowing users to manipulate data and derive insights without altering the original data sources.