Law, in short, is a flawed tool for measuring scandal, just as it is often a clumsy tool for righting wrongs.

ECONOMIST: Al Gore falls to earth

Liberal Democrat AM Eluned Parrott highlighted the importance of having a sophisticated measuring tool in place to distinguish between distinguish between truly indigenous Welsh companies and those with a small office in Wales.

BBC: Finance statement

Sentiment analysis is a commonly used tool for measuring what people are saying about a particular company or brand, but it has issues.

FORBES: With Online Reviews, "Good" Doesn't Cut It