چكيده لاتين :
Human and his performance is a vital factor in protection of asset including environmental properties. The
objective of this study was to evaluate the impact of total system design factors (TSD) on human
performance in a power plant. The TSD factors are defined as design factors, which have impact on overall
performance of the power plants in context of total human engineering or macroergonomics. The systems
being studied are the control rooms and maintenance departments of a 2000 MW thermal power plant. To
achieve the above objective, the TSD factors were addressed and assessed through a detailed questionnaire.
The relationships between TSD factors and human performance were then examined through non-parametric
correlation analysis (Kramer’s Phi) and Kruskal-Wallis test of means. The results of this study show that the
macroergonomic factors such as organizational and safety procedures, teamwork, self-organization, job
design and information exchange, influence human performance in the power plant. The findings also
suggest that the selected macroergonomic factors are correlated to human performance and must be
considered, designed and tested concurrently with the engineering factors at the design phase of the system
developmental cycle. Consequently, total system’s faults and organizational errors are reduced to an
acceptable level and human performance is significantly increased. The main goal in such program is
customerיs satisfaction (Internal customers). However, more elaboration on the scientific tools for
implementation of TDS factors in context of human performance is also under investigation.
