A3 problem solving

Concept

A structured problem-solving method from lean that records background, current state, root cause, countermeasures and follow-up on a single sheet of paper, traditionally A3 size, to guide discussion and learning.

Opis

A3 problem solving is a structured way to work on a problem and to share the thinking behind it. The name refers to the paper size, A3, on which the whole story is kept on one sheet. The author describes the background, the current state, the goal, the analysis of root causes, the countermeasures, a plan and the follow-up.

The sheet is a discussion tool rather than a report. It is reviewed with a coach or manager, who asks questions and helps the author to think, and it is updated as results come in. Because the format forces short, clear statements, it is also a way to teach problem solving. A3 thinking follows the plan, do, check, act cycle and is a common part of lean management.

Słownik

Eksperci i firmy w tym temacie

• Mirko Peters · Microsoft MVP

Maintained by Mirko Peters (Microsoft MVP) · Last updated: 2026-11-11