Stage 06 of 12
Prototype
Build alpha and beta units that represent the evolving product design.
Entry criteria
- A buildable design baseline exists
- Prototype configuration and purpose are defined
- Inspection and test methods are available
Required activities
- Plan and execute controlled prototype builds
- Inspect parts and record deviations
- Integrate subsystems and characterize performance
- Run formative usability and reliability evaluations
Expected deliverables
- Alpha and beta prototype units
- Build history and configuration records
- Integration test results
- Design issue and change log
Recommended capabilities
Look for providers with relevant device, market, and stage experience—not capability labels alone.
Common risks
- Prototype processes hiding production limitations
- Using uncontrolled units for formal evidence
- Late discovery of tolerance and integration problems
Exit criteria
- Representative units meet defined integration objectives
- Critical design issues have approved dispositions
- The verification configuration can be frozen
Suggested next actions
- Freeze verification design inputs and outputs
- Qualify test methods and fixtures
- Book accredited laboratory capacity
Find your next move
Build confidence in prototype.
Map your current evidence and gaps to the capabilities needed for this stage.