What is "checks/verifies"? Doesn't it involve any physical measurements just looking at papers/data? To verify that the "thing" actually works is to me design verification, and more often than not, involves a prototype too.
Validation is to check beyond the basic functionality that the "thing" performs as specified over its entire range of operational (use ) conditions .
This argument is never going to end as long as it remains theoretical. There is no definition that fits every type of product.
Validation is to check beyond the basic functionality that the "thing" performs as specified over its entire range of operational (use ) conditions .
This argument is never going to end as long as it remains theoretical. There is no definition that fits every type of product.
Design Verification happens on paper, long before you have shaped metal, plastic etc. into a product. It makes sure the design inputs were accounted for. Does the design have the right dimensions? Did you design in all the holes and features that were specified in the design plan? Did you evaluate the feautes from a manufacturability point of view? It is generally a discussion "checking" things on paper or onscreen. Some CAD software even has certain verification routines (error checking) built into the software.
It would be silly to build the prototype before you verified and checked repeatedly that all the items (inputs) were addressed. That is why most companies have ongoing regular design review meetings, as the design progresses.
Then, when you have verified that you got everything covered, you commence to making the thing, typically in prototype.
Then you test and evaluate that physical thing, to "validate" that it actually works as planned and that the customer's needs will actually be satisfied. A design engineer spends an inordinate amount of time and energy verifying all the details are covered before we go to the cost of tooling and materials and all that stuff.
Yes, it will vary for different products, but only in scale. The general principles apply pretty universally.

