A dashboard is made up of multiple scenarios. Each scenario in the dashboard is bound to a dataset or model for data visualization. Different scenarios can be bound to different datasets or models depending on your business requirements.
When you create a dashboard, you drag-drop the scenarios to the design area. It is only after binding data to these scenarios, that the scenario becomes meaningful.
Follow the below steps to bind a dataset or model to a dashboard scenario.
Introduction to Datasets
Introduction to Direct Query Model
Introduction to Cached Model