Peer case
A 36-hour freeze, not a 36-day one
How and who for the hotel job—verified when attested.
Job: Replace a brittle PMS without a six-month outage
Group freeze
Verified36 hours
Parallel
Verified6 weeks
Rollback drill
Verifieddone
Claim
A 36-hour freeze, not a 36-day one.
Evidence
Parallel-run log, rollback drill, folio balance, exception rate by night four.
Caveat
Demo-shaped PMS. Use the method, not the logo.
Situation
An on-prem PMS with a night audit that only one person understood. A prior integrator had quoted a six-month dual-run. Groups were afraid to book.
Approach
Keystone Switch (demo method) ran a six-week parallel. Northline (demo PMS) was the target shape. Folio Security traced card flow before go-live. Rollback was drilled on a Tuesday. New groups froze for 36 hours, not 36 days.
Outcome
Go-live on a Wednesday. Folio balanced. Exception rate normal by night four. The 'only one person' closer trained two backups during parallel.
“They treated rollback as a feature. That is why I slept.”
Who did the work
- 8.3
- 8.0
- 8.7