G8 · Go / no-go

Source

Stage-Gate®; PRINCE2® stage boundaries; ISO 21502 governance

Level

B · established practice

Evidence

Checks

• Rehearsal done when data is migrated
• Rollback rehearsed on a copy of production and timed
• Business ready: people trained
• Cut-off agreed with users and counterpart systems
• Counterpart systems confirmed readiness and the window
• Non-functional requirements verified: performance and security results against the NFR
• Migration report is from the final rehearsal or the production load, not from a trial load
• Users set up, licences assigned, roles tested with real accounts

How the gate runs

Predictive

Phase gate: held once, at the end of the stage.

Agile (iterative)

Rolling gate: held per release; item readiness via Definition of Ready, completion via Definition of Done.

Flow (Kanban)

Policy gate: explicit exit policies on the board columns, applied to every item.

Hybrid

Phase gate per phase, with iterations or flow inside the phase.