"Modern English Usage tends to take its data ... from printed sources which aren't themselves definitive."That's because there aren't any definitive sources in English. It's a living language that develops organically. There is no official authority on the language like the Académie Française for French."Data. When used in the area of information is it singular or plural noun? I choose to consider it singular, US style, rather than plural, UK style."I agree. My Oxford dictionary (published 2000) says that treating 'data' as a singular noun (or 'mass noun'), while offending some traditionalists, is now regarded as acceptable in standard British English. MEU3, published two years earlier, says that the singular usage is standard in "computing and allied disciplines".It's a similar shift towards the US usage that occurred with the word "programme", which has been spelt as "program" in the computing sense on both sides of the Atlantic since the mid-1960s.
Richard Jennings ● 6549d