The A3 was developed by Toyota as much as a problem solving tool than as a mean to “align” all the lifeblood of a company in achieving its strategic objectives.
![A3, Outil de résolution de problème, Problem solving, Lean](https://www.marense.com/wp-content/uploads/2012/03/a3.png)
Its A3 frame forces us to be limited to priority items, avoiding a dispersion of forces. It addresses the following key issues:
- Context,
- Problem,
- Objectives,
- Probable causes,
- Possible measures to achieve the objectives,
- Action plan put in place,
![A3, Outil de résolution de problème, Problem solving, Lean](https://www.marense.com/wp-content/uploads/2015/12/A3-card.jpg)
Problem solving methodology for A3 helps to:
- Easily move from the perception of a problem with a clear definition of it,
- Lead your problem solving methodically,
- Search data on the shopfloor and use them, as well as charts, to ensure and demonstrate your approach,
- Digging potential causes to arrive to the root cause and to prove their relationship to the effects,
- Check that the counter-measures taken will eliminate the root causes,
- Avoid the common pitfalls that prevent the discovery of the root causes of problems and their resolution,
- Make a clear presentation, structured, with impact on your audience.
![Objectif, Cible, Target, Lead change, Conduire le changement](https://www.marense.com/wp-content/uploads/2012/03/goal.jpg)
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