Overview
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Read the articleAUTHORS
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Arona AW: Doctorate in ergonomics - Risk management consultant
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Jean-Claude ROUHET: Former student at the École normale supérieure de l'enseignement technique - Executive Vice-President, Aerospatiale Protection Systems
INTRODUCTION
The man-machine system is the basic concept of ergonomic theory (figure 1 ), and defines the object of ergonomic analysis. Defining the characteristics of the man-machine system is essential to work analysis:
people and their physical, psychological, cognitive, socio-professional (level of qualification) and other characteristics;
the machine (material or immaterial) and its characteristics in terms of interface, operating modes, level of automation, reliability, etc.
Other essential and/or contextual elements are also taken into account: work organization, various man-machine interaction media (procedures, interfaces, etc.), means of communication, etc.
Ergonomics, and more specifically work analysis, is concerned with the interrelationships and contextual interactions between the two components of the man-machine system. Operational documentation and procedures define the rules and modalities of interaction, and thus the framework for these interactions, and delimit their scope. For the ergonomist, these are prescriptions often drawn up by the methods department on the basis of the manufacturer's technical documentation. His aim is therefore to identify the results of applying these prescriptions in a fluctuating operational context (hazards, incidents, breakdowns, etc.), and to identify the operator's tactics and strategies for achieving production while managing all the hazards. The aim of the analysis is therefore to highlight this "real" work, which the ergonomist compares with the prescriptions: this is known as measuring the gap.
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Ergonomics Human-machine systems
Bibliography
References
Website
Ergodata database, applied anthropology laboratory http://www.ergodata-laa.com
Standards
The Afnor catalog can be consulted online at : http://www.afnor.fr
- Machine safety – Anthropometric requirements for the design of workstations on machines. Classification index: X35-104. - NF EN ISO 14738 - 5-2003
- Warm atmospheres – Estimation of human thermal stress at work, based on the WBGT index (wet and dark globe temperature)....
Organizations
Agence nationale pour l'amélioration des conditions de travail (ANACT) http://www.anact.fr
Commission internationale de l'éclairage (CIE) http://members.eunet.at/cie
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