ABSTRACT

Human factors and ergonomics (HFE) are two branches of a scientific discipline concerned with: (1) interaction and design of systems that people use at work and in leisure and (2) appropriate work procedures and practices, tools, and computer systems that encompass the work system. The purpose of the design activities is to match systems, jobs, products, and environments to the physical and mental abilities and limitations of people. HFE professionals are involved in these activities. They are also involved in training or educating operators in the use of the system. Ideally, systems should be well designed so that they are intuitive to use and do not require special training or education. However, this turns out to be a very challenging design task as gauged from various usability problems experienced by operators.