I agree with the comments above validation and verification should be approached at the close stage of the project. The idea is that you want to ensure that it meets the user needs through validation and you look at the design inputs/outputs through verification. I slightly disagree with one of the comments above, Quality Assurance from my experience routinely inspect the product to reassure the product is manufactured to its set standard overall it ensures that the device is compliant, While verification deals more with the product design and the building of the right system for the device.

Chris