The short answer
Identify what each sample can demonstrate. A visual prototype, a trial mould sample and a production sample should not be treated as interchangeable evidence.
Sample names can be used differently between companies. Ask how the sample was produced, which materials and processes it represents, and what remains subject to development.
Approve the appropriate characteristics
Use a visual model to discuss proportions and presentation, then assess production-related geometry and function on suitable representative samples. Do not assume a prototype establishes mass-production tolerances or decoration durability.
Keep a staged approval record
Link each sample to a drawing revision and a list of approved characteristics. Record unresolved items and the next required evidence. Obtain closure, filling and packing approval when representative components are available.
Procurement checklist
- Record how each sample was made.
- Identify the drawing revision represented.
- State which characteristics are being approved.
- List outstanding function and process trials.
- Retain the final approved reference pack.
Common question
Can production start after a visual prototype is accepted?
Only after the required technical and commercial approvals have also been completed. Agree the approval gates in advance so appearance acceptance is not mistaken for full production release.