Power BI has introduced a new workspace experience.The new workspace is now the default workspace after General availability(April 2019). The new workspace and the classic workspace coexist side by side, and you can create either, but the new workspace experience is the default workspace type. Workspace is the method of collaborating with colleagues for creating collection of reports and dashboards.
Our customers often ask us in our projects or workshops why Power BI is so successful in the area of Business Intelligence. Besides all the advantages like Self-Service BI (especially for non-technical persons), connectivity to a lot of data sources, creation of stunning reports and dashboards, great possibilities for sharing and collaboration etc. there is one big reason for it: DAX!