• Cause-and-effect diagrams are also called:
  • Ishikawa diagrams (Dr. Kaoru Ishikawa, 1943)
  • fishbone diagrams
• Cause-and -effect diagrams do not have a statistical basis, but are excellent aids for problem solving and trouble-shooting
• Cause-and-effect diagrams can
  • reveal important relationships among various variables and possible causes
  • provide additional insight into process behaviour

   

  Example of a Cause-and-effect diagram

Adapted from Pitt (1994)