Articles written in Sadhana

    • Does cognitive aspects of information and material presentation matter in worker allocation in an assembly line? A case study of a recycling unit in India


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      In most manufacturing units, the contribution of human labor remains a vital element that affects overall performance and output. The research explicated in this paper is conducted in a pen recycling unit in the southern part of India which is an initiative by a non-profit organization to reduce plastic waste and highlight the need for recycling. The objectives of the study are two-fold. Firstly, to investigate the influence of cognitive aspects namely information and material presentation on worker performance in an assembly line and secondlyto propose an economical worker allocation approach based on the findings of the first study considering the pen recycling unit. An experimental study was conducted with fifteen workers and was given eight different scenarioswith the combinations of presenting material and information with six pen varieties for assembly. The performance of workers is identified and appropriate allocations are made to suitable workstations. Further, a subjective measurement using NASA-TLX is also done to determine the mental workload of workers. The results indicate that individual worker performance varies significantly, much more than is assumed. This variation is due to the difference in cognitive capabilities among workers when they are introduced to differentproduct variants and work environments. It is expected that the proposed economical allocation method will be beneficial for similar micro, small and medium enterprises that contribute in achieving sustainability goals.

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