** ''no success'' - each OFF category should correspond to a DOF category. As there are only a limited number of DOF categories, this can fail. The product is then unrecognised with respect to DOF. It should get the label '''unrecognised DOF category'''. | ** ''no success'' - each OFF category should correspond to a DOF category. As there are only a limited number of DOF categories, this can fail. The product is then unrecognised with respect to DOF. It should get the label '''unrecognised DOF category'''. |