The Implementation Stage is the final step in which one or more designs is brought to market. As every minute detail is considered, decisions are made to finalize the design. Engineered CAD databases are created to communicate every aspect of the design to the appropriate manufacturers.

Many exercises are done to verify the success of the design. This could include prototype fabrication, focus groups, in-store testing, and quality-control testing. Based on new information, adjustments are made to the design as needed. Working with a client's internal capabilities, additional considerations are made in regards to product marketing, distribution, and point-of-sale presentation.