Although advocates of the UEMOA project deny the antithetic relationship of the two schemes, the marriage is certainly not an obvious one, and substantial effort will be required to ensure the complementarity as against the opposition of these two schemes. ###>Selon les défenseurs de l'UEMOA, il n'y a aucune relation obligatoirement antithétique entre les deux mécanismes, mais des efforts considérables devront être fournis pour assurer la complémentarité.