Difference between Normative annexes and Informative annexes in ADA 95 I was reading the ADA 95 reference manual. I came across these  two words in annexes 
 Normative and informative . I couldnt find the difference between those. Your help will  be much appreciated.
"Normative" means something that has to be followed, part of the standard. "Informative" is explanations meant to be understood by mere human beings, and that might be ambiguous or inaccurate. It is not to be relied on. Read it to understand, refer to the normative parts where it matters.