Students using microcomputers for extensive periods of time are prone to the same problems as those experienced by video display terminal operators. Suggested guidelines include adjustable furniture and equipment, avoidance of eye strain, control of screen brightness and contrast, and specially prescribed glasses. (MLF)

Discusses theory of mental models--i.e., representations of relationships within a system which enable the user to produce mental simulations of the system's actions and develop ways of dealing with it--and its implications for user training, interface design, and overall systems design. (EJS)

Addresses the problems of unsuitable physical layout of the visual display terminal, keyboard, and document holder and improperly selected office furniture by discussing a group of office products dubbed "computer furniture," i.e., terminal tables and furniture for peripherals. Purchasing advice is included. (EJS)

This second in a series of six articles introducing microcomputer applications in smaller libraries describes the main microcomputer hardware components--processors, internal and external memory, buses, printers, communications, hardware. Importance of ergonomic factors in equipment design, multi-user and network configurations, and the role of…

In workstation design, furniture selection and arrangement directly relate to the way in which work is accomplished. Standardized workstations are being developed to fit the specific needs of various job categories within the electronic office. (Author/MLF)

Guidelines are presented for achieving the human factors inputs to the TA (Technical Approach) in the design process. (For each Navy training device, a TA determination provides for the evolution of the necessary technology.) A method is described which allows correlation of instructional requirements with engineering design solutions. The three…

Discussion of the problem of automation in the workplace with references to libraries focuses on the person/machine interface of visual display terminals (VDT). An argument is made for a human systems approach which integrates operator-user, VDT, work environment, work station, and task. Ergonomic recommendations for VDT use are made. (Author/EJS)

Discusses the health hazards of working with the visual display systems of computers, in particular the eye problems associated with long-term use of video display terminals. Excerpts from and ordering information for the National Institute for Occupational Safety and Health report on such hazards are included. (JJD)

The basic objective of the development of man-machine interactive systems is to design a system that will most effectively take into account the limitations and talents of both man and machine, recognizing that the human factors are, in certain aspects, diametrically opposed to those of the computer. This document briefly investigates those…

Discusses aspects of microcomputer operation that are associated with the human operator and the interface between human and machine or workplace. Work productivity, furniture design (desks, seating), keyboards (shape, layout, and "feel" of keys), and video display terminal screens and lighting are noted. (EJS)

This essay and 48-item annotated bibliography provide information on potential problems of computer terminal use--cathode ray tube, video display unit, video display terminal--in libraries. Information on ergonomics (matching people to machines in humane way), eyes and vision, and radiation is included. (EJS)

Reports the results of two formative research studies conducted during the design process for a new, portable trackball-like computer input device for small children. The findings are discussed in terms of the design of appropriate interfaces for young children, and what can be learned from formative research on products in development. (25…

This study tested the efficiency of two different body sites (the head and the left hand) for operation of a computer adaptive switch by an adolescent with spastic quadriplegic cerebral palsy. Data were collected during an assessment phase and a motor training phase. Results after analysis of the collected data were contradictory and inconclusive.…

Human factors engineering can be defined as the application of scientific principles, methods, and data drawn from a variety of disciplines to the development of engineering systems in which people play a significant role. Since human factors issues arise in every domain in which humans interact with the products of a technological society, six…

Different aspects of human-machine interaction are discussed in the five brief papers that comprise this report. The first paper, "Some Observations on Mental Models," discusses the role of a person's mental model in the interaction with systems. The second paper, "A Psychologist Views Human Processing: Human Errors and Other…