5-Why Training Powerpoint

This Powerpoint training file shows the 5-Why approach with an example that everyone can understand.

After receiving this training, team members will understand the differences between symptoms and root causes, and will a technique and mindset to identify root causes using 5-Why.

This first slide provides an introduction and gives credit to 5-Why founder Sakichi Toyoda. Bullet #1 is the most important: the goal here is to change with way we think about problems, taking our focus off symptoms and finding root causes.

5-Why introduction and creator
5-Why Origins

This slide defines a symptom as a problem that comes to our attention. We can often “make symptoms go away,” but they will more than likely return in the future if we do not address the root cause.

Definition of a sympton
Symptom Definition

This slide defines the root cause as the reason behind the symptom. It all begins with asking “Why?” Correcting a root cause will prevent similar symptoms from occurring in the future.

Root Cause Definition
Root Cause Definition

This is a thorough 5-Why example with animation. Time can be taken to get the class engaged with questions like, “What do you think happened next?” One thing not in the training – in this case the problem solving team sent the broken hose to the forklift manufacturer to find out why it failed. If the team had not taken that initiative, they would not have arrived at the root cause.

5-Why example with forklift leaking oil
Hydraulic fluid leak example

This slide shows the added effect of addressing each “Why?” When we get to the last “Why?,” we benefit from the preventive action that goes with written maintenance procedures. The result will be fewer breakdowns across all equipment, not just forklifts.

5-Why solutions for each Why
Effects of Each Added Corrective Action

Even though the early Why’s do not uncover the root cause, we will often implement containment measures based on our findings. Example: replacing the hydraulic hose in the example above does not address the root cause, but it does get the forklift running again.

Slide 5A Moving from Containment to Prevention
Early Why’s Show Containment, Later Why’s Prevention

Here is the 5-Why worksheet that brings it all together.

Slide 5B - 5 Why Worksheet
5-Why Worksheet

This class exercise gets the class thinking about their problem solving approach, now that they understand the value in finding the root cause. Many teams would react simply by replacing the product. But there is likely a root cause that will surface again, with other customers!

5-Why Class Excercise
Class Exercise – Wrong Item Shipped

We wrap up with a class discussion to further emphasize the importance of root cause analysis. Teams that develop the habit of “fixing” symptoms may find themselves consumed with reacting to problems instead of improving their products and processes.

5 Why Class Discussion Points
Class Discussion – 5 Why Experiences