Meridian's predictive-maintenance model has finished an initial training run. Before the team commits to a full Model Evaluation cycle, the project manager runs the CPMAI Phase IV Go/No-Go assessment. What should this checkpoint focus on?

The Phase IV (Model Development) Go/No-Go assessment checks whether the model produced so far shows enough early, credible promise against the requirements set during Model Development to justify committing resources to a full, rigorous Model Evaluation cycle. It's a checkpoint against sunk-cost continuation, not a final performance verdict. The union contract ratification option is an organizational labor-relations matter entirely unrelated to evaluating model readiness, even though union consultation matters elsewhere in the project's stakeholder management. The training-loss threshold option is wrong because a fixed drop in training loss doesn't prove the model is ready to skip validation; validation and rigorous evaluation are still needed to check generalization and whether the model meets its defined requirements. The already-outperforming-every-legacy-process option sets the bar in the wrong phase. That kind of head-to-head performance comparison against existing operations is the job of Model Evaluation, and later production monitoring against business KPIs, not a Phase IV checkpoint on a freshly trained model that hasn't been rigorously evaluated yet. Merely noting early promise isn't enough by itself; the gate exists specifically to prevent continued investment in an approach that is clearly not working. The correct checkpoint is the decision-forcing function of a Go/No-Go gate: continue to full evaluation only if the model shows enough promise, or stop investing in an approach that's clearly off track.