Six-Sigma4.pptx - CTQ Flow Down Select Y’s(CTQ’s...

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1 Decompose Y i into contributing elements, y i Decompose y i into contributing elements x i , n Select Y’s (CTQ’s) Y i y 1 y 2 y 3 y i x 1 x 2 x 3 Customer needs/wants Y 1 Y 2 Y 3 CTQ Flow Down
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2 CTQ Flow Down Example Customer Requirement (Critical to Quality): Low Emissions HC CO NOx Fuel Type RPM Air/Fuel Ratio Fuel Measurement MAF Flow Measurement 5 Fixed Resistors Ammeter Reading Battery Voltage 1 Variable Resistor Circuit Y y y’ x
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3 Critical Requirements There are other types of critical requirements for Six Sigma projects, called CTX (Critical to X) requirements, here is a list. CTQ (Critical to Quality) CTQ improvement projects may include: Simplifying product designs Aligning product designs with customer requirements Meeting current market place quality levels Exceeding current market place quality levels Exceeding reliability and maintainability requirements Exceeding product appearance expectations Meeting technical requirements Providing products that are more durable
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4 COQ (Cost of Quality) COQ improvement projects may include: Reducing internal rejections Reducing external rejections Minimizing salvage and sorting operations Reducing warranty claims Reducing product variation Reducing process variation Reducing various forms of waste Eliminating unnecessary inspections
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5 CTD (Critical to Delivery)) CTD improvement projects may include: Providing exact amounts of products Providing service within a specific time interval Ensuring immediate response to customer questions Providing a product or service on the proper day and time Providing more rapid field service Providing cost effectie delivery methods Meeting customer packaging requirements Minimizing shipping damage
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6 CTP (Critical to Process) CTP improvement projects may include: Designing products that are easier to assemble Minimizing the changeover times Reducing in-process inventories Minimizing product touch times Optimizing work cell design Streamlining internal work flows Reducing process flow variation Enhancing process velocity Eliminating redundant operations Maximizing product yields Speeding up operations Reducing cycle times Minimizing equipment downtime Maximizing preventative maintenance Performing value stream mapping
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7 Kano Model The Kano Model is also referred to as Kano Analysis. Noriaki Kano is a Japanese engineer and consultant, whose work is being used by a growing number of Japanese and American companies. The model is based on 3 categories of customer needs: 1. Dissatisfiers, (basic requirements, or "must be's"): The customer expects these basic requirements as part of the total package. If the basic requirements are not present, the customer will be unhappy.
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