Which component of Power BI is mainly used for building interactive dashboards?

The Power BI Service is primarily utilized for building interactive dashboards. It is a cloud-based platform where users can publish, share, and collaborate on reports and dashboards. Within the Power BI Service, users have the capability to create dashboards that consolidate visuals from various datasets and reports, allowing for a dynamic presentation of data.

Dashboards in the Power BI Service can display real-time data and provide interactive elements, enabling users to engage with the information more effectively. This interactivity is crucial for data analysis as it allows users to filter, drill down, and derive insights from the visualizations presented.

In contrast, other components like Power BI Designer are focused more on report development and modeling, Power BI Mobile is designed for accessing reports and dashboards on mobile devices, and Power BI Report Server is used for on-premises report hosting and distribution. These components serve different purposes, but the Power BI Service stands out as the key environment for creating and managing interactive dashboards.