Analysis of human work decisions in an aluminium smelter

Mark P. Taylor, Albert Mulder, Michael J. Hautus, John J.J. Chen and Marco Stam

International Journal of Decision Sciences, Risk and Management, 2010, vol. 2, issue 1/2, 46-65

Abstract: Automation is often considered a dominant influence in the process of making most products. However a number of investigators have concluded that decisions of staff are actually a key influence on quality and safety of production plants. In this study, decisions of staff during repetitive, manual or semi-automated operations in a production plant have been observed over years to understand the decisions and their impact on efficiency and quality. A range of operations were observed in an aluminium smelter including replacement of anodes. Many key decisions lay embedded behind the operating procedures themselves and these 'implicit' decisions and relationships to design of the operating system are examined with respect to the removal of carbon dust from the cell electrolyte. A hypothesis about graduated scales of sensory information compared to sensory information presented in a binary way is developed. The importance of feedback during and after the task is also noted.

Keywords: human work decisions; production environments; decision making; recognition primed decisions; RPD; feature matching; repetitive production operations; embedded decisions; operating procedures; graduated scales; binary scales; sensory information; aluminium smelting; production technology; employee decisions; efficiency; quality. (search for similar items in EconPapers)
Date: 2010
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