AN ELEMENTAL RESOURCE FOR THE HUMAN-TASK INTERFACE

The elemental resource model (ERM) attempts to provide a quantitative and straightforward framework for characterizing the human system, tas ks, and their interface. It evolved in large part from the general sys tems performance theory (GSPT), which was developed first and independ ently. Resource constructs are used exclusively for modeling the abstr act idea of system performance and for subsequent measurement of perfo rmance resource capacities. Resource economic principles provide a cau se-and-effect description of the human-task interface. While argued to have immediate utility, it also provides the motivation to consider c oordinated, collaborative, long-term developments that could facilitat e effective decision making and technology utilization in rehabilitati on.