@ARTICLE{10.21494/ISTE.OP.2019.0411, TITLE={Rationality and constraint management in the innovation process: the case of Saint Gobain’s Plateforme du bâtiment}, AUTHOR={Joëlle Forest, Ludovic Vievard, }, JOURNAL={Technology and Innovation}, VOLUME={4}, NUMBER={Issue 4}, YEAR={2019}, URL={https://www.openscience.fr/Rationality-and-constraint-management-in-the-innovation-process-the-case-of}, DOI={10.21494/ISTE.OP.2019.0411}, ISSN={2399-8571}, ABSTRACT={The permanent injunction to innovate raises the question of the mode of existence of innovations. How do the innovations that shape our world and our behaviors emerge? In order to provide some answers, this article reviews the history of a marketing innovation: the plateforme du bâtiment of Saint Gobain. Although it is clear that the genesis of this innovation does not emerge ex nihilo, the history of the plateforme du bâtiment shows that the final form taken by this innovation is closely linked to the way the designers took into account the constraints inherent in any design process. It also highlights the fact that innovation results from the deployment of two forms of thought: creative and analytical rationality. In this way, this article encourages us to emancipate ourselves from a romantic conception of innovation inherited from the magnified storytelling of the genesis of great innovations.}}