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  •   Open Research
  • AUT Faculties
  • Faculty of Design and Creative Technologies (Te Ara Auaha)
  • School of Engineering, Computer and Mathematical Sciences - Te Kura Mātai Pūhanga, Rorohiko, Pāngarau
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A Relationship Between Bias, Lean Tools, and Waste

Purushothaman, MB; Seadon, J; Moore, D
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http://hdl.handle.net/10292/14832
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Abstract
Purpose

This study aims to highlight the system-wide potential relationships between forms of human bias, selected Lean tools and types of waste in a manufacturing process.

Design/methodology/approach

A longitudinal single-site ethnographic case study using digital processing to make a material receiving process Lean was adopted. An inherent knowledge process with internal stakeholders in a stimulated situation alongside process requirements was performed to achieve quality data collection. The results of the narrative analysis and process observation, combined with a literature review identified widely used Lean tools, wastes and biases that produced a model for the relationships.

Findings

The study established the relationships between bias, Lean tools and wastes which enabled 97.6% error reduction, improved on-time accounting and eliminated three working hours per day. These savings resulted in seven employees being redeployed to new areas with delivery time for products reduced by seven days.

Research limitations/implications

The single site case study with a supporting literature survey underpinning the model would benefit from testing the model in application to different industries and locations.

Practical implications

Application of the model can identify potential relationships between a group of human biases, 25 Lean tools and 10 types of wastes in Lean manufacturing processes that support decision makers and line managers in productivity improvement. The model can be used to identify potential relationships between forms of human biases, Lean tools and types of wastes in Lean manufacturing processes and take suitable remedial actions. The influence of biases and the model could be used as a basis to counter implementation barriers and reduce system-wide wastes.

Originality/value

To the best of the authors’ knowledge, this is the first study that connects the cognitive perspectives of Lean business processes with waste production and human biases. As part of the process, a relationship model is derived.
Keywords
Lean manufacturing; Process wastes; Bias; Human factors engineering; Production management
Date
December 16, 2021
Source
International Journal of Lean Six Sigma,DOI: https://doi.org/10.1108/IJLSS-03-2021-0045
Item Type
Journal Article
Publisher
Emerald
DOI
10.1108/ijlss-03-2021-0045
Publisher's Version
https://www.emerald.com/insight/content/doi/10.1108/IJLSS-03-2021-0045/full/html
Rights Statement
Copyright © Emerald Group Publishing Limited, 2021. Authors retain the right to place his/her pre-publication version of the work on a personal website or institutional repository for non commercial purposes. The definitive version was published in (see Citation). The original publication is available at www.emeraldinsight.com (see Publisher’s Version).

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