Black Box Case guide: align clocks and test a causal explanation
Keep original equipment records, aligned plant time, your causal claim and the intervention result separate across the two cases.
Black Box Case: rules, controls and first steps
Two causal-deduction cases: collect evidence, test a fix, then account for safety and production.
What you play
Select equipment to inspect its original records. Open or fold the evidence drawer; inspect plant time and device clocks on separate tracks. Moving the event cursor does not align clocks or start a replay. Align the clocks and compare causes. Case 2 adds a delayed signal: the old auto-stop fix fails, while restoring the live signal can preserve production. Evidence and archives stay separate for each case. On landscape phones, the equipment field, both clock tracks and current actions have separate areas, with horizontal scrolling cues. Expanded timeline help shows the full clock relationships and explanation; closing it keeps the compact layout. Original case and run rules are unchanged. Landscape or desktop is a better fit.
Two causal-deduction cases with separate evidence and archives. Landscape or desktop is a better fit for comparing the clock tracks.
Controls
Select equipment to inspect original records. Open the evidence drawer, inspect the timeline, align clocks and use the case’s intervention and replay controls.
Your first session
- Collect records with their original clock source before deciding which event happened first.
- Align device clocks with plant time. Moving the event cursor alone does not align clocks or start a replay.
- Compare an intervention’s safety and production outcome. In the second case, test the delayed signal rather than repeating the first case’s fix automatically.
Decisions worth watching
A timestamp from one device cannot be compared directly with another device until their clock relationship is established.
A plausible story is not a tested cause. Keep original evidence, your proposed explanation and the intervention result separate.
Detailed player guide
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