Concept GenerationChapter 7
Concept Generation Chapter 7
Concept Development ProcessMissionDevelopmentEstablishGenerateIdentifySelectTestSetPlanStatementPlanFinalCustomerTargetProductProductProductDownstreamNeedsConceptsConcept(s)DevelopmentSpecificationsConcept(s)SpecificationsPerformEconomicAnalysisBenchmark 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
Definition of a Concept: Approximate description of technologyworking principles, and form of product. Describes how product will satisfycustomerneeds
Definition of a Concept • Approximate description of technology, working principles, and form of product • Describes how product will satisfy customer needs
Concept Generation ProcessClarifytheProblemSearchSearchExternallyInternallyExploreSystematicallyReflect ontheSolutions andthe Process
Concept Generation Process
Concept Generation ExamplePowerNailerSENCO
Concept Generation Example: Power Nailer
Problem Decomposition:Function DiagramNPUTOUTPUTEnergy (?)Energy (?)Hand-heldMaterial (nails)+Material (diven nail)nailerSignal (tool"trip")-Signal (?)StoreorConvertacceptenergytoEnergyextenaltranskationalenergyenergyApplyIsolateStoreDriventranskationalNailsnailnailsnailenergy to nail"Trip"ofSenseTriggertriptooltool
Problem Decomposition: Function Diagram
External Search:Hints for Finding Related SolutionsLeadUsers-benefitfromimprovement-innovationsourceBenchmarkingcompetitiveproductsExperts- technicalexperts-experienced customersPatents-searchrelatedinventionsLiterature- technicaljournals-tradeliterature
External Search: Hints for Finding Related Solutions • Lead Users – benefit from improvement – innovation source • Benchmarking – competitive products • Experts – technical experts – experienced customers • Patents – search related inventions • Literature – technical journals – trade literature
Internal Search:Hints for Generating Many Concepts Suspend judgmentGenerate a lot of ideasInfeasible ideas are welcomeUse graphical and physical mediaMake analogiesWish and wonderUse related stimuliUse unrelated stimuliSet quantitative goalsUse the gallery methodTrade ideas in a group
Internal Search: Hints for Generating Many Concepts • Suspend judgment • Generate a lot of ideas • Infeasible ideas are welcome • Use graphical and physical media • Make analogies • Wish and wonder • Use related stimuli • Use unrelated stimuli • Set quantitative goals • Use the gallery method • Trade ideas in a group
Systematic Exploration:Concept Combination TableConvertElectricalEnergytoApplyAccumulateTranslationalTranslationalEnergyEnergyEnergy to Nailrotarymotorw/springsingle impacttransmissionmultiple impactslinearmotormoving masssolenoidpush nailrail gun
Systematic Exploration: Concept Combination Table
VegetablePeelerExerciseVoice of the CustomerKeyCustomerNeeds"Carrots and potatoes are very different."1.The peeler peels a variety of produce."I cut myself with this one."2. The peeler can be usedambidextrously."l just leave the skin on."3.Thepeelercreatesminimalwaste"l'm left-handed. I use a knife."4. The peeler saves time"This one is fast, but it takes a lot off."5. The peeler is durable."How do you peel a squash?"6.Thepeeleriseasytoclean"Here's a rusty one."7. Thepeeleris safeto use and store."This looked OK in the store."8. The peeler is comfortable to use.9. The peeler stays sharp or can beeasily sharpened
Vegetable Peeler Exercise Voice of the Customer • "Carrots and potatoes are very different." • "I cut myself with this one." • "I just leave the skin on." • "I'm left-handed. I use a knife." • "This one is fast, but it takes a lot off." • "How do you peel a squash?" • "Here's a rusty one." • "This looked OK in the store." Key Customer Needs 1. The peeler peels a variety of produce. 2. The peeler can be used ambidextrously. 3. The peeler creates minimal waste. 4. The peeler saves time. 5. The peeler is durable. 6. The peeler is easy to clean. 7. The peeler is safe to use and store. 8. The peeler is comfortable to use. 9. The peeler stays sharp or can be easily sharpened