Gero JS and Brazier FMT (eds) (2002) Agents in Design 2002 Key Centre of Design Computing and Cognition, University of Sydney, pp. 165-180. COMPUTATIONAL MODELS OF CREATIVE SITUATIONS Towards multiagent modelling of creativity and innovation in design RICARDO SOSA and JOHN S GERO Key Centre of Design Computing and Cognition University of Sydney Australia Abstract. This paper presents a series of computational models based on the cellular automata voter model as applied to the study of social influence as a model of creative situations. Preliminary findings related to creativity and innovation in design and their possible implications in agent modelling are presented. 1. Introduction In considering designers as change agents in society (Gero 1996) this paper presents a series of experiments derived from a cellular automata (CA) approach that aims to provide a better understanding of change agency in design and related social phenomena. In these experiments simulated agents interact with each other and with their environment following a set of simple principles that may represent certain aspects of designing. The resulting simulations provide at times rather unexpected outcomes that challenge some of the current beliefs and assumptions about creativity and innovation. The preliminary results presented suggest a series of issues that could contribute towards the modelling of agent-based creative design systems. One of the chief characteristics that associates design activity to social change is the role of creativity in designing and the associated collective processes of innovation in our society, a relation between individual activity and social structures that is only partially understood (Rogers 1995). It has been suggested that the study of creativity should be approached from a systemic view that includes the individual as well as the environmental and social dimensions (Csikszentmihalyi 1997; Findlay and Lumsden 1988). The six models presented here focus on this link in phenomena related to: a) social influence,