Document CIPA DCG-002-2007:-
In English: http://www.cipa.jp/english/hyoujunka/kikaku/pdf/DCG-002_E.pdf (Translated Version)
In Japanese: http://www.cipa.jp/hyoujunka/kikaku/pdf/DCG-002_J.pdf (Original Document)
An interesting document which quotes the reference (inter)national standards and illustrates some of the basic definitions of parameters, the preferred formats and the testing methods, etc. Worth to have a look if you're interested in all those technical stuff.
N.B. CIPA stands for (the Japanese) Camera & Imaging Products Association.