Generative and evolutionary models in the design of architectural form - insights from history

This paper explores the possibilities of the use of computer-aided design models focused on imitating the works of Nature, its form-forming processes and behaviors. Tracking the development of the cybernetic models aimed at architects, the achievements of John H. Frazer and his team of scientists are presented. These are the first working morphogenetic models addressed to architects that use generative and evolutionary tools in search of new architectural forms. Models and design strategies developed between 1968 and 1995, including the Reptile System, the Interactivator and the Janssen Model, are presented. The IT solutions used in them provided the basis for the creation of modern computational tools coupled with digital technology.