The Quality Detective

**Case File #001: The Pepperoni Caper**

Your Mission (Define):

You're the new manager at "Slice of Life" Pizzeria. Things are bad. Customers are furious, online reviews are 1-star, and sales are tanking.

Your job is to use your Six Sigma tools to find the root cause of the problem and save the business. First, you need to analyze the complaints.

Phase: MEASURE

You've collected 100 recent customer complaints. Here's the raw data from your suggestion box. It's... a mess.

Just looking at the list is overwhelming. We need to categorize this data to see what the "vital few" problems are.

Let's tally the 100 complaints. Click each category to add it to the Pareto Chart and reveal the data.

We know the WHAT (Late Deliveries). Now we need the WHY.

Let's build a Cause-and-Effect (Fishbone) Diagram.
Choose the correct category for each cause from the dropdown menu.

0 / 10 Causes Placed

Problem:
Late Deliveries

People

Methods

Machines

Materials

Amazing work, Detective!

Your Findings:

The **Pareto Chart** proved the "vital few" problem was Late Deliveries (75% of all complaints).
The **Fishbone Diagram** helped trace the *cause* of late deliveries to the Methods category.
The Root Cause was "Poor dispatching", which led to drivers getting lost and having no clear routes.

Phase: IMPROVE & CONTROL

Now you can take action! You don't need new ovens or better ingredients. You need to:

(Improve) Implement a new dispatching software that maps efficient routes.
(Control) Monitor "delivery time" as a key metric on a control chart to ensure the solution *stays* fixed.