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Man-machine processes in modeling based engineering activities

This paper discusses the man-machine interaction process in collaborative engineering systems where decisions of humans are assisted by computer procedures. Recent development in communication, multimedia, modeling and knowledge engineering techniques brought a new age in human-computer interface processes. Authors propose a model of the man-machine interaction that can be applied in CAD/CAM and flexible manufacturing systems. The paper is organized as follows. Firstly, computer environment of the group work of engineers is outlined. Then a model of the man-machine system is proposed. The approach to modeling human and computer activities is discussed with an emphasis on handling human intent. Following this, communication between engineers is analyzed and the concept of human intent and its saving by explanation based methods are explained. Finally impact of human-computer procedures on the engineering design and planning work is concluded.