Abstract
A major obstacle to the widespread application of ergonomics knowledge to the working populaton is the inability to impart this knowledge to the ergonomics practitioner. Therefore, industry fails to derive maximum benefits from ergonomics research. The application of computer-assisted systems in ergonomics is one feasible solution to overcome this obstacle. This paper describes the development of an interactive computer-assisted Ergonomics Analysis SYstem (EASY). EASY is written in Foxbase Plus and QuickBASIC for IBM-PC compatible microcomputers. The system consists of three major components: the Ergonomics Information Analysis System (EIAS) for evaluation of tasks by the worker, the Physical Work Stress Index (PWSI) used by the supervisor or the ergonomist for further investigation of problem situations, and the Dynamic Lifting Analysis System (DLAS) for manual material handling tasks. Extensive use of menus for database entry/editing and analysis provides an efficient and friendly interface design. The system was evaluated by comparing the results of EASY and individuals with an introductory knowledge of ergonomics with experts' conclusions for nine test jobs involving a variety of physical works stressors. The evaluatioon indicated that 83% of EASY's disgnoses were accepted by the experts with some variation between individual experts and between EASY and the other diagnosticians.
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