The A3 form is used to document the Plan-Do-Check-Act (PDCA) cycle for problem solving on a single page. It provides a template to systematically address root causes of problems in a rigorous way. The A3 form was pioneered by Toyota and can be used to report project status or guide problem solving in the workplace through documenting the PDCA cycle.

1. Originator:
Summary:
Who To:
Topic:
Basic Knowledge
Version 1.0
DIYL101
A3 Single Point Lesson (SPL)
A3 Thinking And The Use Of The A3 Form
Everyone
Dan Rivera, CPIM, CIRM for DIYLean.com
The A3 form’s purpose is to
document and show, on one page, the results
from the PDCA cycle (Plan, Do, Check, Act).
The A3 template is a guideline for
addressing root causes of problems in the
workplace in a rigorous and systematic way. It
can also be used as a project status report.
The A3 is a lean tool pioneered by Toyota.