William Edwards Deming (October 14, 1900 – December 20, 1993) was an American engineer, statistician, professor, author, lecturer, and management consultant. Educated initially as an electrical engineer and later specializing in mathematical physics, he helped develop the sampling techniques still used today by the U.S. Department of Census and the Bureau of Labor Statistics. In his book, The New Economics for Industry, Government, and Education, Deming championed the work of Walter Shewhart who used techniques such as: statistical process control, operational definitions, and what Deming called the "Shewhart Cycle" which would later evolve into the PDCA and PDSA cycles we know today.
Deming is best known for his work in Japan after WWII. That work began in August 1950 at the Hakone Convention Center in Tokyo when Deming delivered a speech on what he called "Statistical Product Quality Administration". Many in Japan credit Deming as one of the inspirations for what has become known as the Japanese post-war economic miracle of 1950 to 1960. During this time Japan rose from the ashes of the second world war on the road to becoming the second largest economy in the world borrowing from and using many of the techniques Deming shared.
Reference: Wikipedia - W. Edwards Deming