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A3 Problem Solving

a3 report · toyota a3

In short

A one-page (A3-sized) lean problem-solving template that walks a team from background and current state to root cause, countermeasures, and follow-up.

The A3 is a lean/Toyota problem-solving format that fits a complete PDCA cycle on one A3-sized page: background, current condition, goal, root-cause analysis, countermeasures, implementation plan, and follow-up. It forces concise, evidence-based storytelling and is widely used in operational-excellence CAPA programs.

V5 offers an A3 view of any deviation/CAPA so a complex investigation can be reviewed in one glance.

Regulatory anchors
  • ICH Q9
Where this term comes up
PharmaceuticalMedical DevicesFood ProcessingCosmeticsChemicals
How V5 handles it
21 CFR Part 11 — signatures and audit history your team can validate.
V5 supports electronic signing, audit history and validation evidence. Whether your use meets Part 11 is established by your own validation and procedures.
Related terms
CAPARoot cause analysis5 WhysFishbone / Ishikawa8D
Software that covers A3 Problem Solving
V5 Ultimate CAPA Software
Root cause, corrective and preventive actions and effectiveness checks sit with the source event, so owners can see what is open…
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