Agree what is being compared
A design team may care about material use, daylight, installation effort and maintainability at the same time. Clarify which criteria are mandatory, which are preferences and which need specialist confirmation. Avoid reducing a multi-part decision to a single score before the team understands what that score rewards.
Show trade-offs instead of hiding them
An alternative may improve one criterion while making another worse. Present those changes clearly using consistent assumptions and units. Explore whether the ranking changes when a significant input changes. If a small adjustment reverses the preferred option, that sensitivity belongs in the discussion rather than being hidden behind a precise-looking result.
Keep judgment accountable
Document why the team selected an option and who reviewed the relevant performance assumptions. A model can organize evidence and expose alternatives; it does not remove the need for an engineering decision. Keep the chosen option linked to the conditions under which it was evaluated so later changes trigger an appropriate review.
Bring it to the next conversation.
- Distinguish constraints from preferences.
- Show material trade-offs and sensitivities.
- Record the decision and its review basis.
From the Hexifyer team. Examples are illustrative and do not identify client projects. Project requirements and professional responsibilities are agreed for each engagement.