I work for a company that models their a3 process on the Toyota process. Essentially the A3 is used as a structured method of problem definition, requirment pl

I work for a company that models their a3 process on the Toyota process. Essentially the A3 is used as a structured method of problem definition, requirment planning, and solution implementation tracking within the business. A3 originally refers to the size of paper that the analysis was performed on. A pretty basic and typical outline of an A3 process can be found here (http://www.coe.montana.edu/IE/faculty/sobek/A3/steps.htm http://www.coe.montana.edu/IE/faculty/sobek/A3/steps.htm ). To my understanding, originally the A3 process was done with paper and pencil, and the A3 updated as conditions or understanding of the problem changed. The size of the paper (16.5" × 23.4") allowed for a fairly deep analysis of the problem. A3s can be used for anything from analysis of a single failure, all the way up to planning at the business level, with cascading A3s below being referenced by higher level a3s to drive specific actions all the way to the implementation level. In practice the deep analysis of an A3 tends to be squeezed onto a single powerpoint slide (which makes Mr. Tufte cry) and much of the problem solving and communicative power of the A3 is lost.