Quality Management Slide

8/18/2019 Quality Management Slide

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Introduction to Quality

By : Engr. Mohd Syahrin Amri Bin Mohd Noh

UCL

LCL

CL

R

R X

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X, , Cpk


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What Is Quality ?


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• What is Quality ?

In Manufacturing line, quality is define as

measurement of being free from anydefects which had een defined y a s!ecific

customer.

Quality also eing define as ser"ice#!roduct

which meeting the customer requirement

ntroduction to Quality


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In Manufacturing line, quality also eing

monitor as $ield or the !ercentage ofdefect%free !roducts it creates

$ield & Quantity in ' defect

Quantity in( )**+



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he higher the yield, the stale the

!roduct or the etter quality.-or E(am!le :

In $$$ car manufacturing com!any, !roduced

*,*** cars !er month / Base on quality chart,

there were 0 cars with !ower window !rolem

and )1 cars with dented !rolem. 2hat is

the car yield /



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• Answer

$ield & **** ' )3

****

& 44.45+

& 0446

****

( )**+

( )**+

If no defect

$ield & **** ' *

****

& **** ****

& )**+

Do you think this is really good ? Wh

( )**+

( )**+

7ower window & 0

8ented issue & )1

otal 8efects & )3



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• Some of industry monitor defect

rate in PPM (Part Per Million)

• It is an estimation of defect rates inone million parts

77M & Numer of defectsQuantity In9 ),***,***

he higher the 77M , the serious of quality issue & more wors to do



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• PPM calculation eamples

In $$$ car manufacturing com!any, !roduced

*,*** cars !er month / Base on quality chart,

there were 0 cars with !ower window !rolem

and )1 cars with dented !rolem. 2hat is

the defect rate for car !ower window !rolem

and dented issue /



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• PPM calculation eamplesFor power window problem

8efect rates & 0 ( ),***,*** & ;3 77M

*,***

For dented issue

8efect rates & )1 ( ),***,*** & 1** 77M

*,***

-or ao"e results, it means in one million !roduction units,!otentially will ha"e ;3 units !ower window defect !otentially will ha"e 1** units dented issue defect


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• Most Im!ortant Quality Monitoring is ase on


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• In order to monitor the quality of

indi"idual !rocess, data collection is

"ery im!ortant.• 2e will discuss the methods in the

ne(t slides



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E(am!le of 7oa $oe/



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!ata "ollection


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• What is !ata "ollection ?

Is a recording of information for a

specific process # topic$ !ata collection is also a gathering

of information for a certain process

# topic in order to understand theperformance$



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• Why !ata "ollection is needed?%) &o understand the process performance

') &o identify the most highest # lowest problem is a

process) nable team to analy*e and brainstorm for

decision ma+ing

,) &o pass information to others

-) .or team performing hypothesis testing tounderstand the significant effect of the changes #

impro/ement made



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• &ypes of !ata- &he terms 0data1 di/ided into two categories

which consist of

%) 2ariable # Quantitati/e data A numeric answer pro/ided by measuring

instrument such as time (seconds)3 length

(meters)3 weight (grams)

') Attribute # Qualitati/e data "haracteristic of a product which deal with

descriptions but not measured$ amples are

pass # fail3 present # absence3$$



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4 "omparison Qualitati/e 5 Quantitati/e !ata



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4 "omparison Qualitati/e 5 Quantitati/e !ata



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• What is .low chart? .low chart is a type of diagram that

represents a process

Process operations are represented in

boes

&he arrows connecting them represents

flow of a control



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• "ommon Symbols in .low "hart

Start and nd symol.

% It clearly designates the oundaries of the !rocess

Acti/ity symol.

%


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• "ommon Symbols in .low "hart

.low line.

% It indicates the !rogression of ste!s

!ocument symol.

% A document !ertinent to the !rocess. It contains the

8ocuments name or the content data or informationC

!ata base symol.

- Normally it is an electronics storage de"ice

"onnection symol.- It contains a letter or a numer to connect with a

!ortion of the diagram on another !age



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• !ont9s on .low "hart &he team must not map the process base on

how the process should wor+

the way it was designed base on someone9s opinion of it

Imagine on the process

Assume the process is the same as your pre/ious

company that you wor+ before



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• &ypes ;f .low "hart !iagram


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•


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• !etailed .low "hart !iagram



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• Matri .low "hart !iagram



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• Strengths of .low "hart !iagram

It is a !owerful gra!hical tools to document and effecti"ely

communicate a com!le( situation

Effecti"e methods in illustrating the !resent situation and

changes !ro!osed

Shows where in the !rocess data are collected fromcontrol !ointsC



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• "ontrol Points indicate where data is collected



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Quality Management Slide

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