Microelectronic technologies have had an impact on the nature of work in industry for both white-collar and blue-collar workers. Evidence from sector- and enterprise-level studies shows changes in skills and job content for blue-collar workers involved with numerically controlled machine tools, robots, and other microelectronics applications. Maintenance jobs have decomposed into two separate functions--electromechanical and electronic maintenance. The introduction of microprocessors into office work has also brought skill changes. Analysis of research challenges the view that loss of production workers' skills is balanced by an upgrading of office workers' skills. In the occupations of designers and drafters, programmers, and clerical workers, a group of semiskilled workers has appeared. Upgrading of some white-collar occupations--specialist engineers, systems analysts, and top managers--has occurred. Industrial training policy implications for developing countries include the need to develop a work force with competence in information technology, to provide practical experience, and to encourage participation of experts from abroad in training. Research into the impact of microelectronics at both the sectoral and enterprise levels and into microelectronics applications and intercountry studies are needed. (An eight-page bibliography is appended.) (YLB)