The Tableau Workspace

The Tableau workspace consists of menus, a toolbar, the Data window, cards that contain shelves and legends, and one or more sheets. Sheets can be worksheets or dashboards.
Worksheets contain shelves, which are where you drag data fields to build views. You can change the default layout of the shelves and cards to suit your needs, including resizing, moving, and hiding them.
The view below shows the Tableau workspace for a view. The workspace for creating dashboards or stories is quite a bit different. See Adding Views to a Dashboard for information on the dashboard workspace, or The Story Workspace.