What makes dashboards so appealing to the human mind? We love dashboards because they help us establish a sense of control.
Good dashboard design offers this sense of control in three ways: it gives us a clear understanding of the current situation, the resources to predict and plan for the future, and it helps us complete critical tasks in time.
These, and the 'context' and work routine in which a dashboard will get used, are things not to loose sight of when working on dashboard functionality, UI and UX.
( This slideshow is a summary from the article on Dashboards & creating a Sense of Control at http://www.keek.be/2014/designing-dashboards-for-a-sense-of-control/ )