A3 Problem-Solving Sheet

What it is and when to use it

Most “root cause” write-ups get built backward: the fix is already decided, and the analysis gets typed up afterward to justify it. An A3 is built the other way — one page that walks context, current state, target, root cause analysis, countermeasures, plan, and a follow-up check, in that order, so a reader can see exactly where the reasoning happened and disagree with a specific step instead of the whole conclusion. The single sheet is a side effect; the real product is the thinking that had to happen to fill it in honestly.

What goes on the sheet

1. Background: why this problem matters now, and which business objective it connects to
2. Current state: the process today, with real data — not the version that makes the team look good
3. Target: specific, measurable, dated
4. Root cause analysis: the reasoning shown (fishbone, 5 whys, Pareto), not just a stated conclusion
5. Countermeasures, each one explicitly linked to a specific root cause, not a general fix
6. Implementation plan: who, what, by when, broken into verifiable actions
7. Follow-up: how and when the result gets checked again to confirm it held — not just that it was implemented

In a business like yours

• Veterinary clinic: appointments that run late explained on one page, from current state to countermeasures and a check date.
• Distributor: a two-day delivery promise against five real days, and the three changes that close the gap.
• Landscaping company: one sheet the whole crew can read, instead of a long email thread.

Illustrative examples, not client cases.