Timeline Analysis

What It Is Used For

• To match up process performance over time with changes made to the process.

When to Use It

• When something might have changed in the process.
• To compare process performance with changes made in the process.
• To show changes in customer and supplier processes relative to process performance.

Important Notes

• Remember to include changes in people, methods, equipment, materials, environment, and measurement systems.
• Include changes in support processes as well if appropriate.

Timeline Format

The timeline is set up in at least 3 sections:

• First, a (horizontal) time scale.
• Second, a section for documenting process performance.
• And third, a section noting process changes.