PARTIAL RESTORATION
Most of it is working, which is reported as working.
01 DEFINITION
Condition in which a system returns to service with part of its function absent, and the account it gives of itself separates running from not running but not from running incompletely.
02 CONDITIONS
UNCERTAINTY
MISSING
What is still absent is not part of what the system reports about itself.
TIME PRESSURE
MODERATE
People resume as soon as it says it is back, which is sooner than it is.
ERROR ASYMMETRY
DEFERRED
Relying on an absent capability costs nothing until the moment it is needed.
OPERATOR STATE
CONCURRENT
The person is doing their own work and takes the indication at its word.
03 WHERE IT APPEARS
TELECOMService is reported restored while a class of traffic is still not carried.
ENERGYSupply returns to a substation with protection functions still absent, and the indication is binary.
MEDICALA device resumes with a mode unavailable, and the display distinguishes on from off.
MANUFACTURINGA line runs again at reduced capability that the status board does not express.
LOGISTICSA route reopens with a segment still blocked, reported as open.
AI EXP.A service returns with part of its function degraded and reports itself available.
04 WHERE THIS IS SURFACING
This surfaces wherever service comes back in stages and the indication is binary. People resume as though it were whole, because that is what the surface says.
What stays unresolved is where the missing part is named — a system that reports every absence has a normal state that is a list of absences, and one that reports none is relied on for capacities it no longer has.