Name the problem
Start by writing down, in one paragraph, what problem this project is meant to address and over what horizon. Avoid slogans and focus on concrete changes in capacity, reliability, or optionality. This clarity will become the reference point against which every proposed feature, timeline, and financing condition can be tested.
List constraints
Next, assemble a simple list of constraints drawn from plant managers, maintenance leads, and operations teams. Include physical limits, seasonal patterns, labour realities, and governance delays. Placing these constraints alongside proposed financing terms helps you see where the current story assumes more flexibility than you actually have.
Test scenarios
Then, sketch a handful of scenarios that matter most: softer demand, delayed commissioning, higher input costs, or extended downtime. For each, note how cash flows, covenant headroom, and operational stress behave. The point is not to forecast precisely but to see which configurations bend without breaking when conditions turn awkward.
Record reasoning
Finally, capture the reasoning in a concise note that your future self and your successors can read. Include the doubts you had, the alternatives you rejected, and the signals that would prompt you to revisit the decision. This document will not remove uncertainty, but it will keep later conversations grounded in what was actually intended rather than in selective memory.