Fishbone Diagrams Participant and Leader Training Training Objectives This training covers the following Fishbone Diagram topics
Purpose & structure Creating a fishbone diagram Limitations Examples 2 Fishbone Diagram Purpose & Structure A fishbone diagram organizes possible causes into a visual
format that can be quickly understood. 3 Fishbone Diagram Purpose & Structure Fishbone diagrams contain three elements 1. Problem statement describes the problem being considered 2. Cause groupings logical grouping for causes - there can
be as few or as many cause groups as needed 3. Individual causes these are the specific causes that make up each group 4 Fishbone Diagram Purpose & Structure 1
Problem Statement 5 Fishbone Diagram Purpose & Structure 2 Cause Groupings
6 Fishbone Diagram Purpose & Structure 3 Individual Causes 7
Training Objectives This training covers the following Fishbone Diagram topics Purpose & structure Creating a fishbone diagram Limitations Examples
8 Creating a Fishbone Diagram 8 Steps We have found the following eight-step approach to be very effective 1. Communicate the objective 2. Show an example of a completed fishbone diagram 3. Let the team know that all potential
causes will be included on the diagram 4. Ask team members to write their ideas on large sticky notes (3x3 work well), and stick them on a white-board or wall 9 Creating a Fishbone Diagram 8 Steps (continued) 5. Keep the meeting moving and avoid discussing any one cause for too long
6. Once everyones ideas are listed, group the causes under major headings and eliminate the duplicates 7. When the diagram is finished, ask the team members for their thoughts on the top causes to investigate first 8. Take a picture of the sticky-note fishbone diagram and use it to 10 Training Objectives This training covers the following Fishbone
Diagram topics Purpose & structure Creating a fishbone diagram Limitations Examples 11 Fishbone Diagram Limitations
Three things to keep in mind. A fishbone diagram usually includes possible causes, identified in a team setting Typically only a handful (or less) of the possible causes will have a significant impact on the problem Finding out which causes have the most impact on the problem is typically out of scope for a fishbone diagram exercise Fishbone Fishbone diagrams
diagrams are are mostly mostly about about organizing organizing and and communicating communicating potential potential causes causes 12
Training Objectives This training covers the following Fishbone Diagram topics Purpose & structure Creating a fishbone diagram Limitations Examples
13 14 15 Summary The fishbone diagram is a great tool for organizing and communicating potential causes to a given problem The problem statement lies at the head of the fish, and
the problems are grouped along the bones Once a fishbone diagram is complete, other methods are available to rule potential causes in or out, as major contributors (including designed experiments, hypothesis testing, and Pareto charts) 16
