Six-Sigma4 - 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 …

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Unformatted text preview: 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 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 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 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 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 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 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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This note was uploaded on 05/09/2010 for the course IE IE7610 taught by Professor Dr.kaiyang during the Winter '10 term at Wayne State University.

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Six-Sigma4 - 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 …

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