SUMMATIVE STATEMENT
There is strong evidence that insufficient ergonomics cause quality deficiencies in production. Despite this, it has not yet been accepted that ergonomics is an important production factor. Reasons for this situation and possible actions are discussed.
PROBLEM STATEMENT
The scientific literature reports many examples of relationships between ergonomics and quality. However, this knowledge has not been sufficiently systematized for ergonomics to become generally accepted as a production factor.
RESEARCH OBJECTIVE
The objective of this paper is to summarize different perspectives on the relationship between ergonomics and quality, and to discuss the formation of this knowledge on a generalized level.
RESULTS
There is a large number of studies and reviews that have identified strong relationships between the quality performance of individuals and different ergonomics aspects such as light, noise, vibration, ventilation, climate, cognition and physical ergonomics. Further, there are also a large number of studies that have identified a relationship between ergonomics and quality output for the organization in different production settings. There are also examples when causality has been shown. All together, this evidence point to that good ergonomics is a precondition for quality performance, in other words an important production factor.
DISCUSSION
The strong relationship between ergonomics and quality might be accepted within the ergonomics discipline, but not as a production factor and not in working life. TQM and Lean address quality and some aspects of work design as important production factors. There are many reasons why it is not generally recognized that ergonomics is an important production factor. Some of them might be that the research literature is not explicit on this point, the ergonomics knowledge is not spread to the production discipline, and that ergonomics is seen an additional luxury for the employees, provided when the economy of the organization is sufficiently strong. Still another reason might be that there are also examples of how ergonomics improvements can be shown to be unprofitable for the organization.
CONCLUSIONS
A large number of research studies show strong evidence that insufficient ergonomics cause quality deficiencies in production, both on an individual and on an organizational level, confirming that ergonomics is a production factor. It is a problem that this knowledge is not formed, disseminated and accepted by production engineers and managers.