Effective Cognitive Task Analysis for Improvement of Performance- Application of SWAT

Abstract

Process Control monitoring has an added dimension in view of the complexity of the job , mental workload of the operator under stress, human error due to lack of experience in receiving stimuli and lag in choice reaction time and response time. This paper analyzed the different condition of human being under mental workload in cognitive environment and the error which may be generated due to fatigue in operating consistently within the manufacturing system. The nature of task and workplace variables with respect to an intensity of perceived workload measured in a suitable scale to compare their impact on different types of factors involved in it . Attempt has been made to measure the subjective mental workload through Subjective Workload Assessment Technique (SWAT). This is compared to the reaction and response time of an operator in receiving the signal visually and combining it with an auditory system as required in simulated condition to project skill and knowledge of an operator to run the computer controlled machine as well to interpret the machine language and program. The result of the performance in different working condition and with the knowledge and capability to interpret signals will help in system's improvement increasing its cognitive ability.