Ishikawa Diagram

By Tobias Stabrand

This article will describe the Ishikawa Diagram also known as the Fishbone Diagram for managing quality in projects. The article is made as part of the course 42433 Advanced Engineering Project, Program, and Portfolio Management F2022 at the Technical University of Denmark (DTU).

Abstract

The Ishikawa Diagram was introduced back in the 1940s by Professor Kaoru Ishikawa, who invented the tool for the manufacturing industry, namely the ship building industry, to manage product quality issues and to enable investigation of potential root causes to problems. The Ishikawa Diagram is a visual tool that helps to get an overview over the problem, which makes it easier to determine where to look for the root cause(s) to the problem. Due to the diagrams’ visual appearance the tool is also known as the Fishbone Diagram but it is also referred to as the Cause-and-Effect Diagram.

Referencer:

Larsen, S. B. (2018). Projekter & Rapporter: på tekniske uddannelser (1st ed.). Hans Reitzels Forlag.

Jensen, T. J., et al. (2011). Kvalitetsstyring og Måleteknik (1st ed.). Erhvervsskolernes Forlag.

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Wong, K. C., et al. (2016). Ishikawa Diagram. Quality Improvement in Behavioral Health (1st ed. pp. 119-132). Springer International Publishing. https://doi.org/10.1007/978-3-319-26209-3_9

Liliana, L. (2016). A New Model of Ishikawa Diagram for Quality Assessment. Iop Conference Series: Materials Science and Engineering — 2016, Volume 161, Issue 1, pp. 012099. Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/161/1/012099