Philosophie de la conception avec les nouveaux outils informatiques

To arrive at a definition of the new CAD, the thesis is divided into four chapters, accompanied by a conclusion, permitting an analysis of the current CAD situation and the technology available today or in the near future. This analysis leads to the definition of a work station adapted to design so as to bridge the existing gaps.$ sp4$The first chapter consists of an introduction which illustrates the approaches that were used to complete this thesis. Several methods and analyses support the development of approaches upon which future research into the philosophy of design using new computer tools should be based.The second chapter lists the computer peripherals which determine the features of a computer work station. Without its peripherals, the computer is simply a giant calculator. It is therefore important to address this subject in depth when creating a work station adapted to design.The third chapter covers the description of current CAD and the manner in which the data are classified according to their use. Following a summary of the history of CAD and the evolution of generations of systems, this chapter describes today's CAD from the point of view of the user, that is, by the data he uses.The fourth chapter of the thesis describes the progress of a project using the process of continuous design. This chapter looks at the interrelation that exists between the stages in order to show the usefulness of the computer as a design tool. Significant interest has been shown in a new stage: the formalization of the project, which makes the link between the drawing stage and the preproject stage.The conclusion of this thesis puts the current CAD situation into perspective in order to pave the way for the development of new CAD, better adapted to architects and designers and allowing them to finally conceive their projects on computer