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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.

A program has been written for the Texas Instrument's TI-59 hand-held calculator implementing the Quine-McCluskey minimization method for logic circuit design. This program is contained on multiple magnetic cards and provides the user with the capability for combinational logic minimization of circuit design problems containing up to six variables.

A software interface between a firmware documentation system and a logic simulator named TEGAS-51 is described. The interface accepts PALASM2 inputs for PAL files. The output is an ASCII file which defines the firmware parts in TEGAS-5 format. Modules are written in FORTRAN and command routines are written in DCL on VAX 11/780 machines. No system calls are required, so portability is maintained. Limitations include the inability to load two different programs in identical firmware parts on the same design, but this can be overcome. 1GE/Calma Corporation trademark 2MMI Corporation trademark

published_or_final_version / Architecture / Master / Master of Philosophy

published_or_final_version / abstract / Architecture / Doctoral / Doctor of Philosophy