Task decomposition of cell production assembly operation for man-machine collaboration by HTA

The main aim of this work is to address task decomposition of man-machine collaboration by hierarchical task analysis (HTA) approach. The success of HTA in ergonomics study has inspired this work to implement this method in practical cable assembly operation in cell production system. In the development, both the cable assembly tasks of human worker and robot manipulator are being modeled in HTA format. By combining both of them, the collaborative working flow is constructed and well presented in the hierarchical diagram. The modeling approach is useful for task sequence design while preserving the collaboration. The cable assembly simulation has proven the practicability of the approach in man-machine collaborative work.