Ishikawa diagram

UK/ˌɪ.ʃɪˈkɑ.wɑ ˈdaɪ.ə.ɡɹæm/US/ˌɪ.ʃiˈkɑ.wɑ ˈdaɪ.ə.ɡɹæm/

noun

A diagram used in quality management to display a detailed list of causes and effects of a problem and thus to decipher the root cause of a problem.

Meanings

nounIshikawa diagram (plural Ishikawa diagrams)

plural Ishikawa diagrams

  1. A diagram used in quality management to display a detailed list of causes and effects of a problem and thus to decipher the root cause of a problem.

    The procedure for constructing an Ishikawa diagram relies on brainstorming for stimulating the QI team to think of reasons for the problem.

    2000, Donald E. Lighter, Douglas C. Fair, Principles and Methods of Quality Management in Health Care, page 59
    1 more example

    The Ishikawa diagram is used extensively in what is termed root cause analysis, meaning the development of hypotheses of why an event occurred.

    2001, Judy Hankins, Infusion Therapy in Clinical Practice, page 42

    Synonyms: fishbone diagram

Synonyms & antonyms

nounA diagram used in quality management to display a detailed list of causes and effects of a problem and thus to decipher the root cause of a problem.

Origin

Named after Kaoru Ishikawa, who first developed such diagrams as a management tool.

Full word history & related roots →

Translations

Czech diagram rybí kosti
  • diagram rybí kostidisplay of causes and effects
Finnish kalanruotokaavio
  • kalanruotokaaviodisplay of causes and effects
Polish diagram Ishikawy
  • diagram Ishikawydisplay of causes and effects
Russian диагра́мма причинно-следственных связей
  • диагра́мма причинно-следственных связей (diagrámma pričinno-sledstvennyx svjazej)display of causes and effects
Swedish fiskbensdiagram, Ishikawadiagram
  • fiskbensdiagramdisplay of causes and effects
  • Ishikawadiagramdisplay of causes and effects
  • orsak-verkan-diagramdisplay of causes and effects
Cite this entry
APA

Ishikawa diagram. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Ishikawa%20diagram

MLA

“Ishikawa diagram.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Ishikawa%20diagram. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Ishikawa diagram,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Ishikawa%20diagram.

Source: Ishikawa diagram on Wiktionary, CC BY-SA 4.0.