1 “Poka Yoke” or QUALITY BY MISTAKE PROOFING DESIGN AND CONSTRUCTION SYSTEMS IGLC16, Manchester, UK, 16-18 July 2008 “Poka Yoke” or QUALITY BY MISTAKE PROOFING DESIGN AND CONSTRUCTION SYSTEMS IGLC16, Manchester, UK, 16-18 July 2008 Iris D. Tommelein Project Production Systems Laboratory http://p2sl.berkeley.edu/ Iris D. Tommelein Project Production Systems Laboratory http://p2sl.berkeley.edu/
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1
“Poka Yoke”or
QUALITY BY MISTAKE PROOFING DESIGN AND CONSTRUCTION SYSTEMS
IGLC16, Manchester, UK, 16-18 July 2008
“Poka Yoke”or
QUALITY BY MISTAKE PROOFING DESIGN AND CONSTRUCTION SYSTEMS
IGLC16, Manchester, UK, 16-18 July 2008
Iris D. TommeleinProject Production Systems Laboratoryhttp://p2sl.berkeley.edu/
Iris D. TommeleinProject Production Systems Laboratoryhttp://p2sl.berkeley.edu/
Shigeo Shingo (1986) Zero Quality Control: Source Inspection and the Poka-Yoke System
Shigeo Shingo (1986) Zero Quality Control: Source Inspection and the Poka-Yoke System
Paraphrased”“Inspection and statistical quality control come too late in the process to totally eradicate all quality problems.”Quality must be tackled up-front. Quality must be built into each process.
WORKERFOREMAN
INSPECTORGC
PUNCHLISTSNAGLIST
COMMISSIONINGREPORT
OPERATIONFAILURE
LAWSUIT?feedback
to worker
AEC Examples of Mistake-proofingColor Coding Drawings/BIMAEC Examples of Mistake-proofingColor Coding Drawings/BIM
(Source: DPR, Inc., Camino Medical Project)
Color coding shows locations for sheet metal straps and pipe hangers.
Source: John Mack, Southland Ind., presentation at 2007 LCI Ann. Conf.
AEC Examples of Mistake-proofingColor Coding on Site
AEC Examples of Mistake-proofingColor Coding on Site
Mistake Proofing to Accommodate Dimensional VariationMistake Proofing to Accommodate Dimensional Variation
Flexible hose (Source: Picture by Iris D. Tommelein,
Boston, MA, 2007)
?
Connect plug and wiring of light fixtures
(Source: Finelite product literature)
Mistake Proofing to Accommodate OversightMistake Proofing to Accommodate Oversight
Instruction label on outside of
fixture(Source: Picture by Iris D.
Tommelein taken at Finelite, Union City, CA, 2008)
Wiring plug for ballast inside light fixture
(Source: Picture by Iris D. Tommelein taken at Finelite, Union City, CA, 2008)
Preformed sealant grooves and guides in system panels promote accurate sealant placement between panels.