Short answer: the gauge and the KPI card answer one question instantly — are we hitting target right now? They belong on a dashboard’s top row for headline metrics: production vs plan, OEE, on-time-in-full, yield vs target. The catch is that a single number is meaningless without context, so always pair it with its target, a comparison and a trend. A gauge’s dial is space-hungry; for many metrics, compact KPI cards or bullet charts serve better.
Part of The Brewer’s Chart Field Guide. These aren’t really “charts” so much as status indicators — the top row of almost every dashboard.
When to reach for it
Reach for a gauge or KPI card when a single headline metric vs target needs to be readable in half a second — the executive glance. Use a gauge for one hero metric; use KPI cards (with target and trend) when you have several to line up.
Use case 1 — Production vs plan
A gauge or card showing today’s or the month’s output against plan, with the gap and direction. It’s the first thing a commercial planning or ops review wants — are we on track, yes or no.
Use case 2 — Packaging-line OEE
Overall Equipment Effectiveness as a single number against target, with a trend arrow. It headlines the packaging-line view; the detail (availability, performance, quality) lives below.
Use case 3 — On-time-in-full (OTIF)
Service level as a KPI card with target and vs-last-month. One glance tells the team whether delivery reliability is holding — a board-level supply metric that needs no chart, just context.
Where this breaks
A bare number lies by omission — always show target, comparison and trend; “92%” alone is meaningless. Gauges waste space — one dial for one number; for many metrics, cards or bullet-style indicators are tighter. Arbitrary colour zones judge — red/amber/green bands imply thresholds; set them deliberately, not by default. No history — a card is a snapshot; add a sparkline so direction is visible.
The bottom line
Gauges and KPI cards deliver instant status-vs-target for headline metrics — production, OEE, OTIF — and belong on the dashboard’s top row. Their one rule: never a bare number; pair it with target, comparison and trend, or it signals nothing. Use a gauge for the hero metric and cards for the rest. Next, scheduling and timelines: the Gantt chart.
Frequently asked questions
When should a brewery use a gauge or KPI card? On a dashboard’s top row, to show a single headline metric against its target at a glance — production vs plan, packaging-line OEE, on-time-in-full, yield vs target. A KPI card shows the number, its target and a trend arrow; a gauge adds a dial with coloured bands. Both are for instant status, not detail.
What is wrong with gauge charts? A gauge uses a lot of space to show one number and its position in a range, which a small KPI card or a bullet chart does more compactly. Gauges with arbitrary coloured zones can also imply judgements (“red”) that aren’t justified. They’re fine for a single hero metric but waste dashboard space if overused; prefer KPI cards or bullet charts for many metrics.
How do you make a single-number KPI meaningful? Give it context: show the target, a comparison (vs last period or plan), and a trend or sparkline so “good or bad” and “improving or worsening” are both visible. A number alone — “92%” — means nothing without knowing the target, the direction, and whether 92% is up or down. Context is what turns a number into a signal.