The ERI-Designer: A Computer Model for the Arrangement of Furniture Rafael Pe ´rez y Pe ´rez • Alfredo Aguilar • Santiago Negrete Received: 16 October 2009 / Accepted: 29 March 2010 / Published online: 8 October 2010 Ó Springer Science+Business Media B.V. 2010 Abstract This paper reports a computer program to generate novel designs for the arrangement of furniture within a simulated room. It is based on the engagement- reﬂection computer model of the creative processes. During engagement the system generates material in the form of sequences of actions (e.g. change the colours of the walls, include some furniture in the room, modify their colour, and so on) guided by content and knowledge constraints. During reﬂection, the system evaluates the composition produced so far and, if it is necessary, modiﬁes it. We discuss the implementation of the system and some of its most salient features, especially the use of a computational model for creativity in the terrain of design. We argue that this kind of model opens new possibilities for the simulation of the design processes as well as the development of tools. Keywords Computational creativity  Engagement-reﬂection  Design  Furniture arrangement R. Pe ´rez y Pe ´rez (&)  S. Negrete Divisio ´n de Ciencias de la Comunicacio ´n y Disen ˜o, Universidad Auto ´noma Metropolitana, Unidad Cuajimalpa, Mexico D. F., Mexico e-mail: rperez@correo.cua.uam.mx S. Negrete e-mail: snegrete@correo.cua.uam.mx A. Aguilar Posgrado en Ciencias de la Computacio ´n, Universidad Nacional Auto ´noma de Me ´xico, Mexico D. F., Mexico e-mail: o_aguilar@uxmcc2.iimas.unam.mx 123 Minds & Machines (2010) 20:533–564 DOI 10.1007/s11023-010-9208-9