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What is 7 QC Tools

The Seven Basic Tools of Qualityis a designation

given to a fixed set of graphical techniquesidentified

as being most helpful in troubleshooting

issues related to quality.

They are calledbasicbecause they are suitable

for people with little formal training in statistics

and because they can be used to solve thevast majority of quality-related issues

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7 Basic Tools

!hec" sheet#areto !hart

!ause $ %ffect &iagram!ontrol !hart'istogramScatter &iagram

Stratification or (low chart

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Check sheet

The chec" sheet is a simple document that is usedfor collecting data in real-time and at the location

where the data is generated.

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Pareto Chart

#areto chart) named after *ilfredo #areto)is a type of chart that contains both bars and

a line graph) where individual values are

represented in descending order by bars) and

the cumulative total is represented by the line.

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Cause & Effect Diagra ! Fish"one

!ommon uses of the +shi"awa diagram are

product design and quality defect prevention) to

identify potential factors causing an overall effect.

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Control Charts

!ontrol charts) also "nown as process-behavior

charts) in S#! are tools used to determine whether

a manufacturing

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#istogra

+n Statistics) a histograis a graphical

representation showing a visual impression of the

distribution of data

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$catter Diagra

scatter %lotor scatter gra%his a type of

,athematical diagram using !artesian coordinates

to display values for two variable for a set of data.

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$tratification or Flo chart

flowchart is a type of diagram that represents an

algorithm or process) showing the steps as boxesof various "inds) and their order by connecting

these with arrows. .

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Quick Pon'er ((

hat are / Q! toolsho invented #areto chart01therwise called as

!ause $ %ffectStratificationScatter diagram

Than" you all 22