Just because they're measuring doesn't mean they're measuring the same things as before. The goal in 1995 might be "The user can launch the text editor, add th

Just because they're measuring doesn't mean they're measuring the same things as before. The goal in 1995 might be "The user can launch the text editor, add three lines to a file, and save it from a fresh booted desktop within 2 minutes". The goal in 2015 might be "we can get them from a bare desktop to signing up for a value-add service within 2 minutes" I'd actually be interested if there's a lot of "regression testing" for usability-- if they re-run old tests on new user cohorts or if they assume "we solved XYZ UI problem in 1999" and don't revisit it in spite of changes around the problem.