The parent sounds correct. One can have an extensive test suite and still turn out a product that is useless to the customer. These are 2 entirely separate conc

The parent sounds correct. One can have an extensive test suite and still turn out a product that is useless to the customer. These are 2 entirely separate concerns: testing is sanity checking that the code does what it is written to do, user validation is sanity checking that the code is actually useful to a customer (which most certainly cannot be automated or programmed).