The SAP testing strategy CFOs sign off first time

SIT · UAT · Performance · Regression · defect triage matrix.

The 4-wave model

SIT (System Integration Test) → UAT (User Acceptance Test) → Performance → Regression. Each wave has entry criteria (what must be true to start) and exit criteria (what must be true to finish). Anything less and testing becomes a black box.

Defect triage: severity vs priority

Severity is a technical measure — how bad is the defect. Priority is a business measure — how urgently do we fix it. These two are always confused. Our matrix defines both and forces owners to pick one deliberately.