GAUGE

Use when

• WARN: only when a dashboard convention demands a dial for ONE number
• single watched value with declared bands and target

Do not use when

• any multi-metric view (a gauge burns a page on one number)
• audiences without the dial convention (bullet reads faster)

See instead

• more than one metric: CH-MAG-04
• no dial expectation exists: CH-MAG-04

Alternatives

• CH-MAG-04 (several metrics, honest bands)
• CH-PTW-06 (share of 100)

Rules

• bands are the deterministic ink-mix ramp, same as CH-MAG-04
• the value is printed large: the needle decorates, the number informs
• target drawn as a tick crossing the band

Never do this

• WARN ENTRY: a gauge spends maximal ink on one number; CH-MAG-04 shows five in the same space
• unlabeled bands
• 3D dials
• needles without printed values

QA before delivering

• value printed large
• bands ascending and declared
• min <= target, value <= max
• source present

Data shape

{
  "title": "Delivery on-time sits at 87%, 8 points under target",
  "eyebrow": "DELIVERY OTD . WEEK 28",
  "source": "Source: sample dataset v1, 2026-07-12",
  "unit": "%",
  "min": 0,
  "max": 100,
  "bands": [
    60,
    85,
    100
  ],
  "target": 95,
  "value": 87
}