Sammendrag
In this debate paper we follow up on the argumentation given by Boris Wyssusek, who criticizes the use of the BWW-ontology as a foundation of conseptual modelling. In addition, we mention some othe possible foundations for conseptual modelling. We have over many years looked at the area of semiotics, given our social constructivistic view of modelling, and we give a brief overview of how semiotics related to the ontological approach. Finally, we describe some of our practical experiences with the semiotic approach for evaluating modelling languages in an industrial setting.