The research works of this dissertation is carried out accroding to the research contents of Major Project of NSFC on "Some Key Problems from Complex Control System Theory" and its sub-project "The Supercomputer and Its Software Tools for Complex Control System Theory Research". On the backgrand of complex control system, CADCS methodology and CADCS integration methodology is systematically expounded. Some appropriate software tools and integrated environment prototype are also implemented. This dissertation consists of the following aspects. · CADCS methodology. According to the study about the process of complex control system design and the point of view on CADCS software engineering, the methods of system analysis and design in CADCS is systematically discussed. · Object-oriented methodology. On the basis of complex control system and software engineering, object-oriented methodology is systematically elaborated, and the internal relations between object-oriented methodology and natural science dialectics is proposed. ·.CADCS integration methodology. Facing the challenges of complex control system analysis and design， the idea of CADCS integration is proposed, and the problems in software integration about control integration, data integration, and user interface integrateion is systematically discussed. ·Accomplishment of CADCS software tool (CAD85). Using MS WINDOWS and object-oriented programming method, the tool is fit for control system analysis and design. As an open system, it can be expanded more easily. · Implementation of a visualization software tool for Petri Nets modelling and simulation (PNSE).. This software tool adopted graphical windows environment and had multi-document and multi-view sturcture. It can deal with Petri Nets dynamic modelling, performance analysis, and simulation. · Development of a computer algebra software tool for control system (symbolCAD). Using graphical windows, object-oriented programming method, and the algorithm kernel of Mathematica, the tool can meet the needs of the control system analysis and design. · Presentation of A CADCS integrated environment (CADIE). In accordance with requirement of complex control system analysis and design, a development method for CADCS integrated environment is discussed. With the key software tools CAD85, PNSE and SymbolCAD, a CADCS integrated environment prototype CADIE is also implemented.
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