The five indicators
Volume is deliberately left uncoloured: more incidents can mean broader coverage (good) or more instability (bad), and the report has no way to tell which.
Slices
- Period: last 7, 14, 30 (default) or 90 days, or a custom window of up to 180 days.
- Team: all teams, a specific team, or No team — needed to see the incidents with no team attached.
- Compare with: Previous period (same length, ending where the current period starts), Custom period (for example week 0 of a pilot) or Do not compare.
Reading the change
- A duration change is shown in seconds and percent:
−80s · −40%. - A change of a percentage is shown in percentage points (
+16.7 pp), never as a “percent of a percent”. - Every change carries an arrow and an accessible description on top of the colour — it stays readable in greyscale and with a screen reader.
When either side has no sample, the change shows as
— with no arrow. The report never treats “not measured” as zero: that would invent an improvement that did not happen.How we read these numbers
The “How we read these numbers” block, right below the cards, shows what each metric leaves out with the exact count:- Test incidents, ignored
- Incidents without a linked alert
- Never acknowledged (outside MTTA)
- Still open (outside MTTR)
- Auto-resolved by the source, with its share and its own median