Evaluation Methods of Ergonomics Constraints in Manufacturing Operations for a Sustainable Job Balancing in Industry 4.0

Over the years the human factors are becoming increasingly decisive in the organization of the manufacturing industry production process. In this article we are overviewing how ergonomics are integrated in the complete job-scheduling optimization process; we are specifically focusing on the collection of ergonomic data. A large variety of tools and methods have been developed to assess physical and psychosocial risks in a working environment. In this article we review the principal methods described in the literature, labelled under three main categories: observational, self-evaluation and direct measurement. This large diversity of evaluation methods is directly linked with the flexibility required by health experts to analyze precisely various situations in the field. Most of the ergonomic-based job scheduling applications reviewed are using a different method which makes it difficult to compare directly the efficiency of the subsequent optimization.