2596701389

2596701389 - ME2004 Project(Design and Make Dr David Yuen...

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ME2004 Project (Design and Make) Dr. David Yuen Lecturer, ME
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Quality Function Deployment (QFD) Dr. David Yuen Lecturer, ME
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3 Motivation z Designing the wrong product is costly z 80% of time-to-market delays due to poor product definition z Cost of late to market > being over cost or having less than optimal performance z Creeping specifications
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4 Creeping Specifications z More features added with progress in design process z New technologies and competitive products become available before design is complete z Specification changes- even “simple” changes can cause huge change in the design
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5 Understanding a Design Problem is Reflected in Good Engineering Metrics and Specifications z Better outcome if metrics are: Discriminatory - reveal differences in alternatives Measurable - all metrics if possible Orthogonal - each metric identifies a unique feature of the alternative (independence) Universal - apply to all proposed alternatives External - observable by the user who is external to the system
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6 Information Required to Understand the Problem z The goals for the product z How the competition meets the goals z What is important from the customers’ viewpoints z Numerical targets to work toward
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7 QFD Method: Quality Function Deployment z Developed in Japan in mid-1970s z Introduced to US in late 1980s z Toyota example: introduced new car model to market with 60% cost reduction in 1/3 less time with improved quality z Opportunity to learn more about the problem, measurable, applicable to entire problem or sub-problems, what vs. how, time well invested
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8 Quality Function Deployment z While the Quality Function Deployment matrices are a good communication tool at each step in the process, the matrices are the means and not the end. The real value is in the process of communicating and decision-making with QFD. z QFD is oriented toward involving a team of people representing the various functional departments that have involvement in product development: Marketing, Design Engineering, Quality Assurance, Manufacturing/ Manufacturing Engineering, Test Engineering, Finance, Product Support, etc.
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9 QFD – Purpose… z Translate voice of the customer (VOC) into technical design requirements z z Translate customer needs to product design parameters z Coordinate efforts and skills of an organization from a project’s inception to its completion z Ensure customer expectations z Avoid manufacturing catastrophe
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2596701389 - ME2004 Project(Design and Make Dr David Yuen...

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