Download e-book for iPad: A Guide to Human Factors and Ergonomics, Second Edition by Martin Helander

By Martin Helander

ISBN-10: 0415282489

ISBN-13: 9780415282482

Thoroughly revised and up-to-date, A advisor to Human components and Ergonomics, moment Edition offers a entire creation to the sector. development at the origin of the 1st variation, titled Guide to Ergonomics of Manufacturing, the recent identify displays the increased variety of insurance and applicability of the strategies you can find within the moment version. every bankruptcy comprises new fabric and a few were completely rewritten. Drawing at the author’s event in either instructing and undefined, the booklet lays to leisure the typical myths and misconceptions that encompass ergonomics.

Unlike such a lot ergonomics and human components books that emphasize the actual, this one supplies a huge evaluate of cognitive in addition to actual ergonomics. Written in an obtainable kind, it provides a structures method of human elements and ergonomics that results in whole figuring out. the writer demonstrates easy methods to acquire facts on clients and operators and the way to transform the information to solid layout, and gives a realistic advisor to the layout and research of platforms. layout orientated, structures orientated, and effects orientated, this article presents the instruments had to clear up structures difficulties and advance sufficient layout options.

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Extra resources for A Guide to Human Factors and Ergonomics, Second Edition

Example text

4 EVALUATION RESEARCH Evaluation research is more global and less specific in its purpose than experimental studies. It typically involves the study of human performance in real-world settings, such as operators in a manufacturing plant, medical doctors in the operating theater, or firemen fighting a fire. These studies can be exploratory in nature, which means that there may not be a direct purpose, but the investigator would like to educate himself and understand how workers perform their tasks, the effect of the environment, and so forth.

5. A guide to human factors and ergonomics 46 The figure illustrates the reduction of the light threshold as a function of time. When a person first walks into a dark environment, the threshold intensity is high. This means that the photopigments are not very sensitive, and as a result many photons are necessary in order to produce neural impulses. During the first 10 minutes the cones develop more rhodopsin, so that the eyes become much more sensitive to low-level light; the threshold for vision is reduced.

The manufacturing case study in Chapter 2 is a good example of evaluation research. The purpose was to identify reasons for musculoskeletal disorders among factory workers. Later we ran into a more important problem in quality control. It would not be possible to set up an experimental study to investigate this problem. Instead we collected information by talking to people who worked in the plant. Beyer and Holtzblatt (1988) developed a method called contextual inquiry. The purpose of this method is to go to the operator, observe real work, interview people while they are working, and understand what operators look for and how they make decisions.

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A Guide to Human Factors and Ergonomics, Second Edition by Martin Helander

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