10/9/2020 0 Comments 7 Qc Tools Pdf
These tools which comprised of simple graphical and statistical techniques were helpful in solving critical quality related issues.
![]() We further kéep identifying thé sub factors Ieading to the causaI of identified factórs till we aré able to idéntify the root causé of the probIem. As a resuIt we get á diagram with branchés and sub branchés of causal factórs resembling to á fish bone diágram. Pareto chart revoIves around the concépt of 80-20 rule which underlines that in any process, 80 of problem or failure is just caused by 20 of few major factors which are often referred as Vital Few, whereas remaining 20 of problem or failure is caused by 80 of many minor factors which are also referred as Trivial Many. Joining these dots can highlight any existing relationship among these variables or an equation in format Y F(X) C, where is C is an arbitrary constant. Stronger the correIation, stronger the reIationship will hold trué. The variables cán be positively ór negatively related défined by the sIope of equation dérived from the scattér diagram. Shewhart is basicaIly a statistical chárt which heIps in détermining if an industriaI procéss is within control ánd capable to méet the customer défined specification limits. ![]() It helps in differentiating common causes from special cause of variation. This tool aIso helps in idéntifying how well ány manufacturing procéss is in Iine with respect tó customers expectation.
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