The day the stream changed

What should happen after a drift alarm?

Make your own investigation

Author an event stream, label delayed outcomes, and write an investigate/pause/release decision with an accountable role.

Compare rolling means with the reference and separately count delayed error labels. An input alarm is not itself a performance failure.

Case cards

Cut these cards apart. Use the original example first, then let a partner supply a changed case. Keep sealed/final cards with the teacher until the learner commits a rule.

Case 1

Observed value: 10

Later error label: False

My prediction and reason:

Case 2

Observed value: 11

Later error label: False

My prediction and reason:

Case 3

Observed value: 9

Later error label: False

My prediction and reason:

Case 4

Observed value: 15

Later error label: False

My prediction and reason:

Case 5

Observed value: 16

Later error label: True

My prediction and reason:

Case 6

Observed value: 17

Later error label: True

My prediction and reason:

What this cannot establish

Later labels are fictional and immediately supplied here; a real response plan must account for label delay.