A3 Problem Solving
Reference model
The A3 report summarizes the problem, analysis, and action plan in a concise format.
About this model
A3 Problem Solving is a lean management tool that helps teams systematically address problems and document their findings on a single sheet of paper.
Originator not stated.
How to read it
- Start with the problem statement and background to understand the context.
- Follow through the analysis, root causes, and proposed actions for a complete picture.
What this does
Provides a structured approach to identify, analyze, and solve problems using a single A3-sized sheet to summarize the process and findings.
When to use it
Use it when a problem requires a collaborative approach and clear documentation to ensure all stakeholders are aligned on the issue and solution.
Not when: Do not use it for trivial issues or when time constraints do not allow for thorough analysis and engagement from the team.
What happens next
Consider using a Fishbone Diagram to explore root causes in more detail.
Golden thread
Builds on ←
- Problem statement
- Root cause analysis
Feeds into →
- Action plan
Use this tool, free
Sign in to open the worksheet. Your work saves as you type, the AI can draft the parts you have not filled in, and you finish with an analysis and a 30/60/90-day action plan.
Drafted with AI and reviewed by Eccellere on 04/11/2026. Guidance, not advice: apply your own judgement.