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 diagram
Fish head – instance under investigation
Large fish bones – categories
Small fish bones – specific potential root causes
example link: https://youtu.be/hFPdqS5q1e8
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
Last Completed Projects
| topic title | academic level | Writer | delivered |
|---|