Fishbone Diagram Creation

In Lecture 7, the fishbone diagram is introduced as a tool to investigate the assignable causes of a quality problem. This diagram can be adopted to study and illustrate the cause and effect relation for problems beyond quality issues.In this group interaction assignment, each student needs to pick a problem he/she wants to study and create a fishbone diagram to demonstrate all the possible causes of the problem.Fishbone Diagram (Cause-Effect Diagram or Ishikawa Diagram)A means to graphically display causes of problems and seek out possible root causes.Allow collection of all possible causes of a problem and arranges them according to major categories.How to do it?Step 1. Generate a list of all the possible causes of a problem.This is usually done by brainstorming.Step 2. Group the causes into several (usually 4) categories.Many are possible but the usual four for manufacturing process are Machinery/Equipment, People, Methods, and Materials.Step 3. Based on the categorization in step 2 to create a fishbone shape diagramFish head – instance under investigationLarge fish bones – categoriesSmall fish bones – specific potential root causesexample link:
Note: the fishbone diagram should be original and should be different from examples from the slides, textbook, and any other references. A violation to the originality of the fishbone diagram is considered as a plagiarism and will result in a zero score