Jul 13 2015
Is Cost Reduction the Goal of TPS?
In a rebuttal to John Seddon‘s latest paper, An Exploration into the Failure of Lean, Bob Emiliani asserts that the original purpose of TPS was to reduce cost. He quotes both Taiichi Ohno and Yasuhiro Monden saying so, and chides Seddon for not reading their works carefully enough. In the context of these documents, however, I think the quotes are misleading. Neither Ohno’s and Monden’s books, nor any other Japanese publication about manufacturing systems that I have seen, contain a discussion of what costs actually are.
Christoph Roser
Aug 19 2015
Jidoka isn’t just about “stop and fix”
Jidoka (自働化) isn’t just “stop and fix” or “stop and call.” It is a complete approach to automation that includes building in the ability of a machine to stop when it malfunctions but also includes many other things. Sakichi Toyoda’s Type-G loom didn’t just stop when the yarn broke, it also had automatic shuttle change, which reduced the need for human intervention in its normal operations, and was a breakthrough that had eluded everybody else.
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By Michel Baudin • Technology 0 • Tags: Automation, Autonomation, Ford, jidoka, Sakichi Toyoda, Toyota