《生产质量控制》课程教学课件（PPT讲稿）CH8 Concept Selection

Concept SelectionChapter 8

Concept Selection Chapter 8

Concept Development ProcessMissionDevelopmentEstablishSelectIdentifyGenerateTestSetPlanStatementPlanFinalCustomerTargetProductProductProductDownstreamNeedsConceptsConcept(s)Concept(s)DevelopmentSpecificationsSpecificationsPerformEconomicAnalysisBenchmark CompetitiveProductsBuild and Test Modelsand Prototypes

Concept Development Process Perform Economic Analysis Benchmark Competitive Products Build and Test Models and Prototypes Identify Customer Needs Establish Target Specifications Generate Product Concepts Select Product Concept(s) Set Final Specifications Plan Downstream Development Mission Statement Test Product Concept(s) Development Plan

Concept Selection ExampleReusable Syringe

Concept Selection Example: Reusable Syringe

Concept Development Funnel000conceptgenerationconceptscreeningconceptscoringconcepttesting

Concept Development Funnel concept generation concept screening concept scoring concept testing

Concept Selection ProcessPrepare the Matrix-Criteria-ReferenceConcept- WeightingsRate Concepts Scale (+-0) or (1-5)-ComparetoReference Concept orValuesRank Concepts-SumWeightedScoresCombine and Improve-RemoveBadFeatures- Combine Good QualitiesSelect Best Concept-MayBeMorethanOne-BewareofAverageConceptsReflect on the ProcessContinuousImprovement

Concept Selection Process • Prepare the Matrix – Criteria – Reference Concept – Weightings • Rate Concepts – Scale (+ – 0) or (1–5) – Compare to Reference Concept or Values • Rank Concepts – Sum Weighted Scores • Combine and Improve – Remove Bad Features – Combine Good Qualities • Select Best Concept – May Be More than One – Beware of Average Concepts • Reflect on the Process – Continuous Improvement

Example: Concept ScreeningCONCEPTVARIANTSSELECTIONABcFGDEREF.CRITERIA00000Easeof Handling---00000+Ease of Use一-00000NumberReadability+++00Dose Metering++++++0000000Load Handling+0000ManufacturingEase+一一一00++二一--Portability3221222PLUSES3551234SAMES2432010MINUSES0023-20NET-11375264RANKNoNoNoYesCONTINUE?YesYesYes

Example: Concept Screening

Example: Concept ScoringConceptsAEDFG+(reference)LeverStopMaster CylinderSwash RingDial Screw+WeightedWeightedWeightedWeightedWeightRatingRatingRatingRatingSelection CriteriaScoreScoreScoreScore35%3440.20.150.150.2Easeof Handling344315%0.450.60.60.45Easeof Use23550.20.30.50.5Readabilityof Settings10%332325%0.750.750.50.75Dose Metering Accuracy425315%0.30.750.60.45Durability332220%0.60.60.40.4Ease of Manufacture33330.30.30.30.3Portability10%2.753.103.05Total Score3.45Rank4123NoNoNoContinue?Develop

Example: Concept Scoring

NovoLogMix70/30FlexPenPrefilledSyringe70%2nespartiroNAoOAaanhuinFromProductDesignandDevelopmentbyKarlUlrichandStevenEppinger(McGraw-Hill/lrwin)

Remember..The goal of concept selection is not toSelect the best concept.The goal of concept selection is toDevelop the best concept.So remember to combine and refine theconcepts to develop better ones

Remember. The goal of concept selection is not to • Select the best concept. The goal of concept selection is to • Develop the best concept. So remember to combine and refine the concepts to develop better ones