Eléments pour une description dynamique du système vocalique de l'arabe

The elements of the vocalic system of Classical Arabic are located, from the point of view of the traditional grammars, from up to down with the order a, u, i, respectly named "open", "joint" and "pull back" which generated the morpho-syntaxical tassonomy: "put up", "lift" and "lower". This disposition is very important for lexical generating and for a correct prosody. The rythmic and melodic patterns are necessary for a good acquisition of both Classical and colloquial Arabic. A dynamic approach could generate an efficient way to understand and perform in arabic, and would be an efficient way for learning and teaching arabic.