<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>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.</p>
</abstract>

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.

Case Study in Hypothesis Prioritization with Ishikawa Diagrams

Management Systems in Production Engineering

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"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...

Case Study in Hypothesis Prioritization with Ishikawa Diagrams

Published Online: Dec 06, 2023

Page range: 381 - 388

Received: Mar 01, 2023

Accepted: Oct 01, 2023

DOI: https://doi.org/10.2478/mspe-2023-0042

Keywords
Root Cause Analysis, RCA, Problem-Solving, Quality, Case Study

© 2023 Matthew Barsalou, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Case Study in Hypothesis Prioritization with Ishikawa Diagrams

Published Online: Dec 06, 2023

Page range: 381 - 388

Received: Mar 01, 2023

Accepted: Oct 01, 2023

DOI: https://doi.org/10.2478/mspe-2023-0042

KeywordsRoot Cause Analysis, RCA, Problem-Solving, Quality, Case Study

© 2023 Matthew Barsalou, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Root Cause Analysis, RCA, Problem-Solving, Quality, Case Study