Dashboards: Define the Metric Before Showing the Number

We built a sales dashboard and three departments each reported wrong numbers. Sales counted signed customers, finance counted collected payments, operations counted registrations. All three were right, with different definitions.

Define metrics down to the field

Name, definition, time range and exclusion rules, all four. 'New customers' must state whether trials count and whether the date is signing or payment.

Store definitions in a metric dictionary inside the product, viewable from the page, instead of relying on verbal explanation.

Three dashboard habits

One screen answers one question. Too many metrics and nobody knows where to look.

Numbers must drill down. Being able to open the detail behind an anomaly beats ten more charts.

State the refresh time. A two-hour delay and real-time updates lead to completely different decisions.

A dashboard is not about beautiful charts. It is about everyone reading the same number the same way.