PubMed · 9397804
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M Lusted, C Aickin. 1997. Save your back!. https://pubmed.ncbi.nlm.nih.gov/9397804/
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The aim of this study was to evaluate the effects on the working postures and movements of a cashier when two different locations of the scales (one to the left of the cashier, the other under the conveyer belt in front of the cashier) were used in a grocery checkout system. Two cashiers (of average stature and short stature) were videotaped while working, in both sitting and standing working positions. Analysis of the video tapes was performed using the WOPALAS method and video observations. The results of the study show that the design of the checkout system with the scales under the conveyer belt provides a more favourable working position for both the taller and the shorter cashier. Additionally, the results indicate that a standing position is more favourable than a sitting one for the taller cashier while for the shorter cashier the sitting position is better.
This is the second paper in a series of two, reviewing human error identification approaches for risk assessment of high risk socio-technical systems. The previous paper identified and reviewed thirty-eight techniques. One of the closing comments was that no single technique sufficed for all the practitioner's needs, and that a potential way forward was to utilise a number of techniques in a toolkit fashion, or to develop a new framework-based or toolkit-based approach. This paper therefore describes in detail a framework approach developed for the UK nuclear power and reprocessing industry, showing the practical implementation of such a system. It then considers some of the advantages and disadvantages of such framework approaches. The paper also discusses some of the relationships between error identification and Ergonomics.