Dashboards often fail by showing everything and answering nothing. A good dashboard supports specific decisions.
Start With Users and Decisions
Who will use it, how often, and what will they decide? An executive's weekly overview differs from an operations team's live monitor.
Choose a Few Key Metrics
Lead with the handful of numbers that matter most, each with context: target, previous period or trend. A number without comparison doesn't tell anyone whether things are good or bad.
Layout
- Most important information top-left, where people look first.
- Summary first, detail below or on drill-down pages.
- Group related metrics together.
- Consistent chart types, colours and scales.
Make It Readable
Clear titles that describe what each chart shows, sensible number formatting (1.2M rather than 1,203,448.27), and restrained colour that highlights exceptions.
Filters and Drill-Down
Offer filters for common questions (region, product, date range), but set sensible defaults so the dashboard is useful without clicking.
Trust
- Show when data was last updated.
- Document metric definitions and link to them.
- Reconcile numbers with official sources.
- Fix data problems quickly — once people distrust a dashboard, they stop using it.
Iterate
Watch how people use it, remove charts nobody looks at, and ask what questions remain unanswered.