If all writing is information storage, then all writing is of equal value. Each society stores information essential to its survival, the information which enables it to function efficiently. There is in fact no difference between prehistoric rock paintings, memory aids (mnemonic devices), wintercounts, tallies, knotted cords, pictographic, syllabic and consonantal scripts, or the alphabet. There are no primitive scripts, no forerunners of writing, no transitional scripts as such (terms frequently used in books dealing with the history of writing), but only societies at a particular level of economic and social development using certain forms of information storage. If a form of information storage fulfills its purpose as far as a particular society is concerned then it is (for this particular society) ‘proper’ writing.
–Saki Mafundikwa