You can use dashboard parameters to interact with dashboard items. For example, you can filter dashboard items by dashboard parameter values.
Master Filtering
The Dashboard allows you to use any data-aware dashboard item as a filter for other dashboard items (Master Filter). End-users can select elements in a Master Filter item (grid records, chart bars, pie segments, etc.) to filter data in other dashboard items by the selected values.
Drill-Down
The Dashboard provides a Drill-Down feature which allows end-users to change the detail level of data displayed in a dashboard item. The Drill-Down feature enables users to drill down to display detail data, or drill up to view more general information.