Connect causes, defenses and actions.

Use the 5 Whys guide with a 10-sheet workbook for Fishbone, Swiss Cheese and action tracking. A3 is not included.

Purchased files can be kept, edited, printed and exported without a subscription. Web exports require membership; shop files are not included in membership.

What you receive

Editable 5 Whys Word guide plus one 10-sheet Excel workbook coordinating 5 Whys, Fishbone, Swiss Cheese, evidence, actions and review. Includes instructions and a fictional example. A3 is sold separately.

Look inside · English guide

Preview page from the included Word guide. Open the image to read it at full size.

Why choose a guided pack?

Explore possible causes, trace the evidence and examine the controls that should prevent a repeat.

English pilot: native Excel, Excel for web, mobile and print compatibility have not been fully validated. Formula cells are not locked. Fixed capacity: 18 candidates, 15 why links, 6 defense layers and 30 actions. Use a saved copy per case; do not expand the input ranges. This is a qualitative investigation aid, not a safety certification or validated risk score.

When it helps

Choose one real problem, record the starting point, and review the result. The tools provide structure; your process knowledge makes them useful.

Use cases →

Check the method with a worked example

Use the guide to distinguish a possible cause from a supported explanation. This file bundle remains separate from the free tools; A3 is not included.