Stage 5 — Build and Test Prototype

 Implement engineering development plan.

Steps 5.1 through 5.4

To view supporting evidence, click on magnifying glass icons or hyperlink text.
Click on the toolbox images to view tools related to each step.
Click on the Tupperware — Children's Healthy Eating System image to review an example of the steps in this stage.

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supporting evidence.

Step 5.1

Design/specify/acquire components necessary to build functional alpha prototype models of product, as a proof of concept.

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supporting evidence.

Step 5.2

Monitor progress in Step 5.1 according to plan.

Assess barriers to device adoption by intermediary stakeholders. 

Assess barriers to device use by target beneficiaries. 

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supporting evidence.

Step 5.3

Test alpha prototype models under controlled lab conditions, and according to established performance parameters.  

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supporting evidence.

Step 5.4

Make model revisions based on test results to generate beta prototypes.

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Decision Gate 5

Should the project continue and go to beta prototype testing? Determine if the beta prototype will solve the problem and is feasible to deploy in the marketplace. Does it demonstrate sufficient value — efficacy/effectiveness/economies — according to the preliminary assessments in Phase I? If yes, continue to Stage 6. If no, terminate or reiterate Stage 5.