What is A3?

A practice pioneered by Toyota in which the problem, the analysis, the corrective actions and the action plan are written on a single sheet of paper (A3 size), usually with graphs…

Meaning and application in management

A practice pioneered by Toyota in which the problem, the analysis, the corrective actions and the action plan are written on a single sheet of paper (A3 size), usually with graphs and figures. At Toyota, A3 reports evolved into a standard method for problem solving, status reporting and planning exercises such as value stream mapping. A3 is the international term for a sheet of paper 297 millimeters wide and 420 millimeters long.

See: Value Stream Mapping

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