The filler was one of the structural parts using composite material. The filler manufacturing machine was effectively developed based on the principles of usability by HCI. This machine consisted of an ultrasonic cutter, heater, forming rollers and drawing motor. It applied to separate the disk-shape cutter of ultrasonic cutter in order to remove burning the knife edge of ultrasonic cutter. And the developed machine had the two-stage forming rollers for improved formability which maintained accurately the filler shape.

Work-related injurieshave become the issue in the twentieth century. Musculoskeletal disorders are the most common work-related injuriesand the most frequent from of work-related i11-health (more than 50％ of total work-related injuries (BLS 1990)). The workers at copy shops have complained of pain in their back, legs, and shoulders. Most of them work for more than 8 hours a day. They have claimed that their pains were associated with repetitive and continuous work over a long term. The purpose of this research is to suggest an ergonomically comfortable redesign of the copy machine. This study was performed by conducting a survey of copy shop workers who have complained of job-related physical pain, and analyzing their working postures. The copy machine was ergonomically modified to reduce the workers' pain. The VIS10N 3000 software was used to analyze the posture. The analysis showed significant difference in the ranges of back and neck motion (p<0.05).

본 연구는 HCI 이론을 적용하여 게임형 학습 프로그램을 평가하기 위한 준거를 개발한다. 사람들이 편리하고 즐겁게 사용하도록 하는 시스템을 개발하는 원리나 방법을 연구하는 학문인 HCI 이론은 다양한 영역의 프로그램 개발에 광범위하게 적용되어 왔다. 그리고 학습 프로그램을 평가하는 데도 널리 활용되어 왔다. 그러나 HCI 이론을 적용한 게임형 코스웨어 평가에 대한 연구는 거의 없다. 따라서, 게임형 코스웨어 평가 연구에서도 HCI 이론 적용이 필요하다. 본 연구는 HCI의 구성요소인 유용성(Usefulness), 사용성(Usability), 감성(Affect)의 관점에서 평가 준거를 개발한다. 본 연구에서 개발한 평가 준거는 게임형 학습 프로그램을 평가하는 기준으로 활용될 수 있을 것이다.