Computer supported cooperative work (CSCW) researches on nature and characteristic of cooperative work and methodology of developing computer information system to support it. Recently it became a hot point of cross-disciplinary studies. In concurrent engineering, with the support of various communication and design-aiding tools, members of multi-disciplinary team work together cooperatively, to deal with all elements within the product life circle and to assure the global optimization of design. It is realized that concurrent engineering is an idea field to apply CSCW. High expectation was put on CSCW and concurrent engineering, however, there is a lack of study on intermediate and opearatable methods and models between the theory of cooperative work and development and implementation of cooperative work pattern including its computer support systems. In this dissertation, modeling of cooperative work, development and integration methods of CSCW systems, and a pattern of distributed concept design in concurrent engineering are studied. The main results are listed as follows: (1) A review of theory and modeling approach is given. Some evaluation criteria for modeling approach are established as a basis for choosing particular approacll to particular cooperative work situation. (2) An agent-based modeling approach to cooperative work is presented. The underlying theory is bounded rationality that is applied to cooperative work. The approach is consisted of two parts, i.e., the basic model of cooperative work agent (CWA) and modeling language for cooperative work. (3) The relation between the agent-based modeling approach to cooperative work and ISO reference model of open distributed processing (RM-ODP) is studied. So the cooperative work model can be translated into requirement specification and design specification easily, and CSCW system can be designed compatible with open distributed processing system of the enterprise. (4) Two cooperative work patterns other than workflow pattern are revealed and analyzed with the agent-based modeling approach. (5) A star-shaped life cycle method of user-centered development of CSCW system is put forward. (6) A software-agent-based method and its system architecture for CSCW system is presented. (7) General design theory (Yoshikawa, 1987) is improved so as to deal with the system-subsystem relationship. (8) On the basis of general design theory and recent group decision making techniques, a pattern for distributed concept design is put forward based on and-or design tree. (9) A control heuristic for distributed concept design based on and-or design tree is presented, which combines the evaluation from Delphi techniques and scheduling of design activities. Taken the multi-skill designer constrains into consideration, the design activity schedule algorithm of Kusiak&Belhe (1994) is improved. (10) A prototype
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