Final manufacturing process  Final review for Mass production 

Product assembly Identify DFM issues Process development for mass manufacturing Engineering change order request (if applicable) Development of test equipment and calibration software Regulatory testing and certification Review gate for readiness 

Field testing Generation of the prototype issue list  Review gate for production

Develop custom parts Contact suppliers Design review by suppliers Work with supply chain experts for COTS components Generation of updated Schematic and Gerber files

Develop 5 prototypes Industrial design Hardware design Software design Testing

Breadboard prototyping/POC Form exploration

Product concept Basic market research Identifying the target market