In my point of view some important aspects for consideration during design transfer and handing off the product are:

Safety: The risk to humans or the environment
Accuracy: The difference between the expected truth and the actual parameter
Precision: The number of distinguishable measurements
Resolution: The smallest change that can be reliably detected
Response time: The time between a triggering event and the resulting action
Bandwidth: The amount of information processed per time
Maintainability: The flexibility with which the device can be modified
Testability: The ease with which proper operation of the device can be verified
Compatibility: The conformance of the device to existing standards
Mean time between failure: The reliability of the device, the life of a product
Size and weight: The physical space required by the system
Power: The amount of energy it takes to operate the system
Nonrecurring engineering cost (NRE cost): The one-time cost to design and test
Unit cost: The cost required to manufacture one additional product
Time-to-prototype: The time required to design, build, and test an example system
Time-to-market: The time required to deliver the product to the customer
Human factors: The degree to which our customers like/appreciate the product