A-IRB, the most advanced method of assessing credit risk.

ECONOMIST: Bothersome Basel

The standard measure for such things is the Scoville Heat Unit, or SHU, named after Wilbur Lincoln Scoville, a chemist who in 1912 developed a method of assessing the heat given off by capsaicin, the active ingredient in chili peppers.

WSJ: The World's Hottest Chili

The new tests are perhaps the closest Wales will get to having a standard method of assessing pupils once again.

BBC: The literacy challenge facing Wales