Inspections are tasks of inspection types. They're created:
by a routing step;
by an inspection plan on receiving (the receipt is quarantined until the inspection passes);
by people.
In-line checks: a number field with limits (lsl, usl) is a measurement. A completed task with a measurement outside its limits opens an NCR of the company's NCR type, linked to it and carrying its machine and work order.
NCRs are tasks too:
ncrs.open raises one from the task where a problem was found, with the affected lot or product;
ncrs.disposition records the decision, once per NCR, and needs Disposition NCRs.
Dispositions:
use as is: recorded only;
rework: creates a rework task;
scrap: moves the quantity of the lot to the bads bin and blocks the lot;
return: blocks the lot for return to the vendor.
Maintenance
Corrective work is a task of a maintenance type, opened by a person, an issue report (from the app or a QR code), or a condition rule on machine data.
Failure coding: maintenance types can require a problem, a cause and a remedy code to complete (tasks.update or tasks.submit_form with problemCodeId, causeCodeId, remedyCodeId). analytics.failure_pareto ranks failure modes.
Preventive maintenance has three triggers:
time-based: a task type's recurrence schedules the next task when one completes;
usage-based: a meter (run hours, strokes, cycles) with a rule "every N" opens a task each time the meter advances by N;
condition-based: a rule on a live signal (temperature above 80) opens a task when it's crossed.
Meters: manual meters take readings (meters.record_reading, the running total), and signal meters count from machine data. A reading's preview says which preventive tasks it would open.
Spare parts: each machine lists its spare parts.
Downtime
A stop is one downtime event: when the machine stopped, when it ran again, and the reason it was given.
Machines with telemetry report their stops themselves (auto).
For others, people report them (downtime_events.open and .close).
Classifying a stop (downtime_events.classify) gives it a downtime reason code. Agents classify only with the reason a person gives: an unclassified stop is a gap to report, not a guess to fill.
Analysis:
downtime_events.summary gives stopped time per machine and reason;
analytics.downtime measures time spent in a DOWN or MAINTENANCE status;
