The Dashboard Designer is a web-based UI for embedding Reports, Ad Hoc views, and other BI objects into a single, interactive space. You can compile Dashboards that include pre-existing elements, such as Reports and Views. You can also create new Charts, Tables, and Cross-tabs from your data sources directly from the designer.

Each element on your Dashboard is called a Dashlet. Dashlets have unique names and resource IDs, and editable properties that vary depending on the Dashlet type.
Your permissions to access the Repository may limit the content you can add, as well as the locations where you can save the Dashboard.