Most of us walk into this exam carrying one mental image of a go/no-go: a room, a sponsor, a deployment date. That image costs marks. CPMAI does not have a go/no-go. It has six, one at the end of every phase, and the exam tests whether you know which evidence closes which gate. WHAT THE ECO ACTUALLY NAMES Two tasks in the September 2025 Examination Content Outline carry "go/no-go" in the task title, and both sit in Domain IV. Domain IV, Task 5. Verify data quality for go/no-go decision to conduct data preparation. Domain IV, Task 6. Verify model ready for operationalization go/no-go decision. A third is a gate in everything but name: Domain III, Task 8, Determine if data meets solution needs. Read Task 6 again, slowly. The decision to operationalize is taken in Phase V, Model Evaluation, and it is scored in Domain IV, not Domain V. Phase VI and Domain V own deployment mechanics, monitoring, governance and transition. They do not own the decision to deploy. That decision was already taken, on evaluation evidence, before Phase VI began. This one mapping produces a lot of wrong answers on exam day. The remaining gates are methodology, documented in the CPMAI Workbook checkpoints rather than named in the ECO task list. Know which is which. The exam is written against the outline. THE SIX GATES AND THE EVIDENCE THAT CLOSES EACH ONE Phase I, Business Understanding. Is this worth solving, and does it need AI at all? Business, data and execution feasibility answered. The AI pattern identified. Non cognitive alternatives considered and rejected on stated grounds. ROI determined. Anchor: Domain II, Tasks 1, 2, 5, 8, 9. Phase II, Data Understanding. Does the data we can actually obtain meet the needs of the solution? Sources, access, ownership, quality, and the difference between training data and operational data. Anchor: Domain III, Task 8. Phase III, Data Preparation. Is the prepared data fit for purpose? Quality verified as an explicit decision. Transformation and preprocessing results validated separately from the inputs. Findings documented, including what was accepted. Anchor: Domain IV, Task 5.