“Eloquence through simplicity”
One of the largest challenges facing high-level management or leaders is information. A large organization is complicated at the best of times, and the information passed on by lower-level management is distorted by their own biases and interests. Even when you get unbiased information, it may not be clear what matters or what you should pay attention to.
Enter the dashboard. There are many definitions, but Stephen Few uses a relatively simple one: a dashboard is a “visual display of the most important information needed to achieve one or more objectives, consolidated and arranged on a single screen so the information can be monitored at a glance.”
In other words, the reader should be able to look at the dashboard and take in what they need to know in a single glance. They are an overview of performance.
So far so good, and yet many dashboards fail to achieve this purpose. They use misleading diagrams, or colours that provide no information but make it hard to take information in quickly, or have a poor data-to-ink ratio. Some will clutter the display with unnecessary visual effects, or arrange information poorly, or fail to consider exactly what the audience needs to know.
The solution is simplicity. Every pixel in a dashboard should have a purpose, or you should remove it. Dashboards should 1) maximize the data-to-ink ratio, and 2) emphasize the data. IT workers should push back when customers demand poor dashboards, and give them not what they want, but what they need. No dashboard can do everything, and pretending they can will only create confusion.
The book spends most of its time going through examples, which are particularly informative. Few highlights some dashboards that fail, and some that succeed, in a wide variety of contexts. This isn’t a casual read, but if you use dashboards in your own life (and they are surprisingly general in purpose – you could use one for your physical exercise, for example!), it is an excellent one, full of rich advice and good ideas.