Spaghetti Diagram Explanation

Understanding Spaghetti Diagrams

A spaghetti diagram is a visual representation of physical flow and movement within a process, tracking the path of people, materials, or information.

What is a Spaghetti Diagram?

• Purpose

  Used to visualize and analyze the physical flow of work in a process, identifying inefficiencies in layout and movement.

• Benefits

  • Identifies unnecessary movement
  • Highlights layout inefficiencies
  • Shows opportunities for process improvement
  • Quantifies distance traveled

• How to Create

  1. Draw the floor layout
  2. Observe the process
  3. Draw lines showing movement
  4. Analyze the patterns

Example: Factory Floor Layout

Analysis

The diagram shows excessive movement between storage and shipping. Consider reorganizing the layout to minimize travel distance.

Before

Distance: 240m

After

Distance: 120m

Implementation Tips

Step 1: Observe

Follow workers/materials throughout their entire process cycle.

Step 2: Document

Draw lines to represent movement patterns on the layout diagram.

Step 3: Analyze

Look for crossing lines and long distances to identify improvement opportunities.