Write before testing
Record the prototype identity, revision, test purpose and the conditions you plan to use. Include the observation method and what would count as a meaningful result. Ask qualified specialists to define any test involving safety or demanding performance. A test card should communicate the plan clearly enough that another reviewer can understand what happened and what was intentionally excluded.
Capture the actual conditions
Write down deviations from the plan and keep photographs or measurements linked to the correct prototype. Do not replace an unexpected result with the result the team hoped to see. Explain uncertainty and any equipment limitations. The card becomes useful evidence when it distinguishes planned conditions from actual ones and helps the next iteration build on the same understanding.
A practical review checklist
- Identify the prototype revision.
- Record planned conditions.
- Keep deviations with the result.
Further reading
General design-planning material. Actual specifications, machine operation and safety decisions require suitable qualified expertise.