Case Study in Hypothesis Prioritization with Ishikawa Diagrams

The objective of this paper is to explore a multidisciplinary problem-solving team investigating a customer-reported failure using an Ishikawa diagram with a spreadsheet for prioritizing and tracking investigation actions in a manufacturing organization. A case study methodology is used with the act...

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Main Author: Barsalou Matthew
Format: Article
Language:English
Published: Sciendo 2023-12-01
Series:Management Systems in Production Engineering
Subjects:
Online Access:https://doi.org/10.2478/mspe-2023-0042
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author Barsalou Matthew
author_facet Barsalou Matthew
author_sort Barsalou Matthew
collection DOAJ
description The objective of this paper is to explore a multidisciplinary problem-solving team investigating a customer-reported failure using an Ishikawa diagram with a spreadsheet for prioritizing and tracking investigation actions in a manufacturing organization. A case study methodology is used with the actions taken to investigate a customer-reported failure explained. The highest priority failure hypothesis was found to be unrelated to the failure. Two medium-rated hypotheses were found to be causing the problem; leakage was occurring at the connection between two components due to a diameter deviation of one of the components. Identifying and prioritizing hypotheses from the Ishikawa diagram provided structure to the investigation and gave the investigation team leader a tool for tracking the investigation actions. This approach is suitable for all types of failure investigations in which an Ishikawa diagram is used to list hypotheses.
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spelling doaj.art-a9db8a32da5a442c88fe7d068dad66552023-12-11T07:38:05ZengSciendoManagement Systems in Production Engineering2450-57812023-12-0131438138810.2478/mspe-2023-0042Case Study in Hypothesis Prioritization with Ishikawa DiagramsBarsalou Matthew01QPLUSThe objective of this paper is to explore a multidisciplinary problem-solving team investigating a customer-reported failure using an Ishikawa diagram with a spreadsheet for prioritizing and tracking investigation actions in a manufacturing organization. A case study methodology is used with the actions taken to investigate a customer-reported failure explained. The highest priority failure hypothesis was found to be unrelated to the failure. Two medium-rated hypotheses were found to be causing the problem; leakage was occurring at the connection between two components due to a diameter deviation of one of the components. Identifying and prioritizing hypotheses from the Ishikawa diagram provided structure to the investigation and gave the investigation team leader a tool for tracking the investigation actions. This approach is suitable for all types of failure investigations in which an Ishikawa diagram is used to list hypotheses.https://doi.org/10.2478/mspe-2023-0042root cause analysisrcaproblem-solvingqualitycase study
spellingShingle Barsalou Matthew
Case Study in Hypothesis Prioritization with Ishikawa Diagrams
Management Systems in Production Engineering
root cause analysis
rca
problem-solving
quality
case study
title Case Study in Hypothesis Prioritization with Ishikawa Diagrams
title_full Case Study in Hypothesis Prioritization with Ishikawa Diagrams
title_fullStr Case Study in Hypothesis Prioritization with Ishikawa Diagrams
title_full_unstemmed Case Study in Hypothesis Prioritization with Ishikawa Diagrams
title_short Case Study in Hypothesis Prioritization with Ishikawa Diagrams
title_sort case study in hypothesis prioritization with ishikawa diagrams
topic root cause analysis
rca
problem-solving
quality
case study
url https://doi.org/10.2478/mspe-2023-0042
work_keys_str_mv AT barsaloumatthew casestudyinhypothesisprioritizationwithishikawadiagrams