2012 INSTITUTE OF TECHNOLOGY PETRONAS SDN BHDAll rights reserved. No part of this document may be reproduced, stored in a retrieval system or transmitted in any form or by any means (electronic,mechanical, photocopying, recording or otherwise) without the permission of the copyright owner.

UniversitiTeknologiPETRONASFacultyofEngineeringChemicalEngineeringDepartment

byIr Dr Abdul Halim Shah Maulud

Chemical Engineering DepartmentEmail : halims@petronas.com.my Room : 05-03-06

DesignforQuality PartII

EngineersinSocietyVBB4043Maysemester,2014

Objectives

Todesignforqualityviaqualityfunction

deployment(QFD).

Todiscussthehouseofquality.

2

DesignforQuality&Reliability

Preventproductfailuresratherthanreacttothem. Createtheculturetodesignqualityandreliabilityintotheirproducts

Useproductdevelopmentteamstoensurethatthequalityandreliabilityissuesproperlyrepresented

Understandindetailthecapabilitiesandlimitations.

3

4

Requires answer to set of questions :

- What are the functions customer wants?- What are the capabilities of current products?

- Are there better material available?

- How much the product cost for successful marketplace?

- What are critical attribute of performance?

- How much performance does customer want?

Design for quality

BenefitsofQFDo ImprovesCustomerSatisfaction

oCreatesfocusoncustomerrequirementsoUsescompetitiveinformationeffectivelyoPrioritizesresourceso Identifiesitemsthatcanbeactedupono Structuresresidentexperience/information

o ReducesImplementationTimeoDecreasesmidstreamdesignchangeso LimitspostintroductionproblemsoAvoidsfutureapplicationopportunitieso Surfacesmissingassumptions

5

BenefitsofQFD

o PromotesTeamworkoBasedonconsensusoCreatescommunicationatinterfaceso IdentifiesactionsatinterfacesoCreatesglobalviewoutofdetails

o ProvidesDocumentationoDocumentsrationalefordesigno IseasytoassimilateoAddsstructuretotheinformationoAdaptstochanges(alivingdocument)oProvidesframeworkforsensitivityanalysis

6

Qualityfunctiondeployment,(QFD)

Translatecustomersrequirementintofunctionaldesign#voiceofcustomer

QFDapproachbyDrS.Mizuno fromTokyoUniv.isusedthroughouttheworld

QFDimplementation houseofquality stepbystepproceduretoseehouseofqualityisdevelopedandanalyzed

7

HouseofQualityC

usto

mer

requ

irem

ents

(v

oice

of t

he c

usto

mer

)

Leftwall Voiceofcustomer,whatcustomerexpects

8

Technical descriptors (voice of the organization)

Relationship between requirements and descriptors

Prio

ritiz

ed c

usto

mer

re

quire

men

ts

Interrelationship Between

Technical descriptors

Prioritized technicaldescriptors

Right wall Prioritized customer requirement

Ceiling - Technical descriptors

Interior walls Relationship between requirements and descriptors

Roof - Interrelationship between descriptors

Foundation Prioritized technical descriptors

Measure Target

Ranking

Measure

Target

Wt.

Quality Function Deployment

DESIGN FEATURES

INTERACTIONS

CUSTOMER REQUIREMENTS DEPENDENCIES

BuildingHouseofQuality

10

BuildingHouseofQuality

Step1Listcustomerrequirements (WHATs) Customers needsor

expectationsPrimarySecondary

11

BuildingHouseofQuality

Step2Listtechnicaldescriptors (HOWs) Counterpartcharacteristics

Primary Secondary Tertiary

12

BuildingHouseofQuality

Step3Developarelationshipmatrixbetween WHATs andHows StructuringanLShapedDiagram

Easy Notrequireexperience

13

BuildingHouseofQuality

Step3Contd. Relationshipmatrix

Degreeofinfluencebetweeneachtechnicaldescriptorandeachcustomerrequirement

Strongrelationship=9Mediumrelationship=3Weakrelationship=1BlankNorelationship

14

BuildingaHouseofQuality

DevelopanInterrelationshipMatrixBetweenHOWs

15

Alu

min

um

Wel

ding

Die

Cas

ting

Sand

cas

ting

Strong positive+9

+3 Positive

-3 X Negative

-9 Strong Negative

Step 4

Used to:

identify any interrelationship between each of the technical descriptors (support or conflict?)

Material Selection

Manufacturing Process

Technical descriptors (HOWs)

BuildingaHouseofQualityCompetitiveAssessments

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Step 5

Customer assessment1. Corresponding to each customer requirement

2. Rating from 1 (worst) to 5 (best)

3. Used to

a) determine if the customers requirements have been met.

b) identify areas to concentrate on in the next design

c) Where an organization stands relative to its major competitors

Technical assessment1. Corresponding to each technical descriptor

2. Rating from 1 (worst) to 5 (best)

3. Used to uncover gaps in engineering judgment.

BuildingaHouseofQualityDevelopPrioritizedCustomerRequirements

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Step 6

1. Importance to the customer: rating from 1 (least important) to

10 (very important)

2. Target value: rating from 1 (worst) to 5 (best)

3. Scale-up factor: ratio of the target value to the product rating given in the customer competitive assessment

4. Sales point: 1.0 (lowest) - 2.0 (highest)

5. Absolute weight = 1 X 3X 4

A percent and rank for each customer requirement can be determined.

Houseofquality QFDlayout

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Intercorrelations

Application

Universities Designcoursecontent&curriculum Supportservices

BusinessandDefenseOrganizations Budgeting

Designingtrainingmodules

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Conclusion

QFD Effectivemanagementtool Customerexpectationsareusedtodrivedesignprocessortodriveimprovementinserviceindustries

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Q&A 2012 INSTITUTE OF TECHNOLOGY PETRONAS SDN BHDAll rights reserved. No part of this document may be reproduced, stored in a retrieval system or transmitted in any form or by any means (electronic,mechanical, photocopying, recording or otherwise) without the permission of the copyright owner.