Weighting table : a broader view for the ergonomic intervention

Abstract

The use of the Ergonomics Tridimensional Analysis (ETdA) methodology to perform the assessment of risk situations on areas commonly used by workers and clients allows a broader understanding of a system ergonomic approach. The final task of the ETdA is the establishment of a Weighting Table to support the analyst on the ergonomic intervention decisions. The decision-making process is based on a 3-point colored scale, identifying the situations requiring a short-term intervention, a mediumterm intervention or non-critical situations. In order to study the influence of the weights in decision making process a comparative study on results obtained from the Weighting Tables was done. The Ergonomic factors affected by the clients’ weight were assessed and each type of changes separately studied. Obtained results showed that increasing weights given to clients dimension can lead to different decision-makings regarding the ergonomic intervention.