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Six Sigma
Six Sigma (6σ) is a set of techniques and tools for process improvement. It was introduced by American engineer Bill Smith while working at Motorola in 1986. Six Sigma strategies seek to improve manufacturing quality by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes. This is done by using empirical and statistical quality management methods and by hiring people who serve as Six Sigma experts. Each Six Sigma project follows a defined methodology and has specific value targets, such as reducing pollution or increasing customer satisfaction. The term ''Six Sigma'' originates from statistical quality control, a reference to the fraction of a normal curve that lies within six standard deviations of the mean, used to represent a defect rate. History Motorola pioneered Six Sigma, setting a "six sigma" goal for its manufacturing business. It registered Six Sigma as a service mark on June 11, 1991 (); on December 28, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bill Smith (Motorola Engineer)
William, Willie, Will, Bill, or Billy Smith may refer to: Academics * William Smith (Master of Clare College, Cambridge) (1556–1615), English academic * William Smith (antiquary) (c. 1653–1735), English antiquary and historian of University College, Oxford * William Smith (scholar) (1711–1787), English classical scholar and Anglican Dean of Chester * William Smith (Episcopal priest) (1727–1803), Scottish-born first provost of University of Pennsylvania * William Pitt Smith (1760–1796), American physician, educator and theological writer * William Andrew Smith (1802–1870), American college president and clergyman * William Smith (lexicographer) (1813–1893), English editor and publisher of dictionaries * William Robertson Smith (1846–1894), Scottish philologist, physicist, archaeologist and Biblical critic * William Benjamin Smith (1850–1934), American professor of mathematics at Tulane University * William Ramsay Smith (1859–1937), Australian anthropologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statistics
Statistics (from German language, German: ', "description of a State (polity), state, a country") is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a statistical model to be studied. Populations can be diverse groups of people or objects such as "all people living in a country" or "every atom composing a crystal". Statistics deals with every aspect of data, including the planning of data collection in terms of the design of statistical survey, surveys and experimental design, experiments. When census data (comprising every member of the target population) cannot be collected, statisticians collect data by developing specific experiment designs and survey sample (statistics), samples. Representative sampling assures that inferences and conclusions can reasonably extend from the sample ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PDCA
PDCA or plan–do–check–act (sometimes called plan–do–check–adjust) is an iterative design and management method used in business for the control and continual improvement of processes and products. It is also known as the Shewhart cycle, or the control circle/cycle. Another version of this PDCA cycle is OPDCA. The added stands for ''observation'' or as some versions say: "Observe the current condition." This emphasis on observation and current condition has currency with the literature on lean manufacturing and the Toyota Production System. The PDCA cycle, with Ishikawa's changes, can be traced back to S. Mizuno of the Tokyo Institute of Technology in 1959. The PDCA cycle is also known as PDSA cycle (where S stands for ''study''). It was an early means of representing the task areas of traditional quality management. The cycle is sometimes referred to as the Shewhart / Deming cycle since it originated with physicist Walter Shewhart at the Bell Telephone Laborator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culture Of Japan
Japanese culture has changed greatly over the millennia, from the country's prehistoric Jōmon period, to its contemporary modern culture, which absorbs influences from Asia and other regions of the world. Since the Jomon period, ancestral groups like the Yayoi and Kofun, who arrived to Japan from Korea and China, respectively, have shaped Japanese culture. Rice cultivation and centralized leadership were introduced by these groups, shaping Japanese culture. Chinese dynasties, particularly the Tang dynasty, have influenced Japanese culture throughout history and brought it into the Sinosphere. After 220 years of isolation, the Meiji era opened Japan to Western influences, enriching and diversifying Japanese culture. Popular culture shows how much contemporary Japanese culture influences the world. Identity There are two competing hypotheses that try to explain the lineage of the Japanese people. The first hypothesis proposes a dual-structure model, in which Japanese po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lean Management
Lean project management is the application of lean concepts such as lean construction, lean manufacturing and lean thinking to project management. Lean project management has many ideas in common with other lean concepts; however, the main principle of lean project management is delivering more value with less waste in a project context. Lean Project Management applies the five principles of lean thinking to project management.Lloyd, Gary.(May 2015). "Lean Projects" article in "Digital Leaders", a collection of articles published by The British Computer Society "Lean" is a systematic method for the elimination of waste (" Muda") within a manufacturing system. Lean also takes into account waste created through overburden (" Muri") and waste created through unevenness in work loads (" Mura"). Working from the perspective of the client who consumes a product or service, "value" is any action or process that a customer would be willing to pay for. Lean approach makes obvious ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Six Sigma-2
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. In mathematics A six-sided polygon is a hexagon, one of the three regular polygons capable of tiling the plane. A hexagon also has 6 edges as well as 6 internal and external angles. 6 is the second smallest composite number. It is also the first number that is the sum of its proper divisors, making it the smallest perfect number. It is also the only perfect number that doesn't have a digital root of 1. 6 is the first unitary perfect number, since it is the sum of its positive proper unitary divisors, without including itself. Only five such numbers are known to exist. 6 is the largest of the four all-Harshad numbers. 6 is the 2nd superior highly composite number, the 2nd colossally abundant number, the 3rd triangular number, the 4th highly composite number, a pronic number, a congruent number, a harmonic divisor number, and a semiprime. 6 is also the firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mu (letter)
Mu, or my (; uppercase Μ, lowercase μ; Ancient Greek , or μυ—both ), is the twelfth letter of the Greek alphabet, representing the voiced bilabial nasal . In the system of Greek numerals it has a value of 40. Mu was derived from the Egyptian hieroglyphic symbol for water, which had been simplified by the Phoenicians and named after their word for water, to become 𐤌 (mem). Letters that derive from mu include the Roman M and the Cyrillic М, though the lowercase resembles a small Latin U (u). Names Ancient Greek In Greek, the name of the letter was written and pronounced . Modern Greek In Modern Greek, the letter is spelled and pronounced . In polytonic orthography, it is written with an acute accent: . Use as symbol The lowercase letter mu (μ) is used as a special symbol in many academic fields. Uppercase mu is not used, because it appears identical to Latin M. Prefix for units of measurement "μ" is used as a unit prefix denoting a facto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mean
A mean is a quantity representing the "center" of a collection of numbers and is intermediate to the extreme values of the set of numbers. There are several kinds of means (or "measures of central tendency") in mathematics, especially in statistics. Each attempts to summarize or typify a given group of data, illustrating the magnitude and sign of the data set. Which of these measures is most illuminating depends on what is being measured, and on context and purpose. The ''arithmetic mean'', also known as "arithmetic average", is the sum of the values divided by the number of values. The arithmetic mean of a set of numbers ''x''1, ''x''2, ..., x''n'' is typically denoted using an overhead bar, \bar. If the numbers are from observing a sample of a larger group, the arithmetic mean is termed the '' sample mean'' (\bar) to distinguish it from the group mean (or expected value) of the underlying distribution, denoted \mu or \mu_x. Outside probability and statistics, a wide rang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigma
Sigma ( ; uppercase Σ, lowercase σ, lowercase in word-final position ς; ) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used as an operator (mathematics), operator for summation. When used at the end of a Letter case, letter-case word (one that does not use all caps), the final form (ς) is used. In ' (Odysseus), for example, the two lowercase sigmas (σ) in the center of the name are distinct from the word-final sigma (ς) at the end. The Latin alphabet, Latin letter S derives from sigma while the Cyrillic script, Cyrillic letter Es (Cyrillic), Es derives from a #Lunate sigma, lunate form of this letter. History The shape (Σς) and alphabetic position of sigma is derived from the Phoenician alphabet, Phoenician letter (Shin (letter), ''shin''). Sigma's original name may have been ''san'', but due to the complicated early history of the Greek Archaic Greek alphabets, epich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Alphabet
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. It was derived from the earlier Phoenician alphabet, and is the earliest known alphabetic script to systematically write vowels as well as consonants. In Archaic Greece, Archaic and early Classical Greece, Classical times, the Greek alphabet existed in Archaic Greek alphabets, many local variants, but, by the end of the 4th century BC, the Ionia, Ionic-based Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard throughout the Greek-speaking world and is the version that is still used for Greek writing today. The letter case, uppercase and lowercase forms of the 24 letters are: : , , , , , , , , , , , , , , , , , , , , , , , The Greek alphabet is the ancestor of several scripts, such as the Latin script, Latin, Gothic alphabet, Gothic, Coptic script, Coptic, and Cyrillic scripts. Throughout antiquity, Greek had only a single uppercas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Deviation
In statistics, the standard deviation is a measure of the amount of variation of the values of a variable about its Expected value, mean. A low standard Deviation (statistics), deviation indicates that the values tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the values are spread out over a wider range. The standard deviation is commonly used in the determination of what constitutes an outlier and what does not. Standard deviation may be abbreviated SD or std dev, and is most commonly represented in mathematical texts and equations by the lowercase Greek alphabet, Greek letter Sigma, σ (sigma), for the population standard deviation, or the Latin script, Latin letter ''s'', for the sample standard deviation. The standard deviation of a random variable, Sample (statistics), sample, statistical population, data set, or probability distribution is the square root of its variance. (For a finite population, v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mikel Harry
Mikel J. Harry (born: December 28, 1951; died: April 15, 2017) was a prolific author who is credited for developing Six Sigma, along with Bill Smith. Harry was sometimes referred to as the 'father of Six Sigma'. One of his books, ''Six Sigma: The Breakthrough Management Strategy Revolutionizing the World’s Top Corporations'' (published by Crown Business, 2000) has been on the bestseller list of The Wall Street Journal, Bloomberg Businessweek and Amazon.com. He graduated with a PhD from Mary Lou Foulton Teachers College. At the age of 65, he died on 25 April 2017, in Chandler, Arizona. Bibliography Books * * * * * * * * * * Awards and recognition Mikel J. Harry received the lifetime Engineering Excellence Award from Arizona State University in 2002. He was inducted into the "Who's Who" Registry of Global Business Leaders in 1993. Death He died on April 25, 2017. See also * Six Sigma * Bob Galvin * Bill Smith (Motorola engineer) William, Willie, Will, Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
