Quality Function Deployment (QFD) – Download free templates
What is Quality Function Deployment (QFD)?
In Six Sigma DMAIC we use Quality Function Deployment (QFD) methodologies and tools in the Define stage.
QFD (Quality Function Deployment) is a customer-driven product (or service) planning process. It is a system for translating and deploying customer requirements into specific company requirements at each stage from Concept Definition (R&D) to Process Engineering and Production and into the marketplace.
Quality Function Deployment is a methodology to help us make the transition to up-front, prevention-based planning for robustness and producibility.
QFD deploys the voice of the customer through a cross-functional team’s project management of the integrated development process. The QFD process establishes customer objectives and measures and records them on a series of matrices.
Quality Function Deployment collects the voice of the customer (VOC) in their own lingo and incorporates this VOC into the company’s cross-functional team’s project management of the integrated development process. The QFD process establishes customer objectives and measures and records them on a series of matrices.
Quality Function Deployment – QFD is used to:
Collect customer’s requirements/desires as specified by the customers in their own words
Prioritize these desires
Translate them into engineering/process requirements
Establish targets to meet the requirements.
Quality Function Deployment is also called:
Voice of the Customer
House of Quality
Matrix Product Planning
The Quality Function Deployment Matrix or QFD matrix
QFD matrix translates the CCRs into CTQs. The final score helps prioritize the CTQs and helps you decide which CTQs to tackle first.
Quality Function Deployment – QFD Methodology
Identify both internal and external customers.
Create a list of customer requirements/desires (Whats) by
Asking the customer, questions such as “What are the important features of The Product”
Capturing the customer’s own words or “Voice of the Customer” or VOC
Categorizing the Whats into groups/buckets if needed.
Prioritize the above collected Whats on a scale of 1-5, with 5 being the most important. This ranking is based on the VOC (Voice of Customer) data. The CCRs (Whats) are listed vertically in the first column and all related CTQs (Hows) are listed horizontally across the top . In the second column, assign 1 to 5 based on the importance of the CCRs, where 5 is the most critical to the customer.
Score each CTQ (Hows) on how strongly it correlates to each CCR. Remember we are looking at the absolution value of the correlation. It can have either positive correlation or negative correlation. Use 5 for a strong correlation and 1 is a weak one. Leave it blank if there is no correlation. Some CCRs will have few CTQs that relate and rest unrelated.
Compile list of CTQs (Hows) necessary to achieve the CCRs (Whats.)
Translate the CCRs from VOC (Whats) into CTQs (Hows)
Arrows show direction for improvement (up for increasing, down for decreasing, etc.)
For each What, find out the correlation with each How. If the correlation is strong use 5. If its week use 1. If its in between, use a number 2, 3, 4 based on how strong the correlation is.
Next multiply the importance rating for the CCR by the correlation score for each CTQ.
Add up the scores vertically for each CTQ and place that value in the bottom score row.
Once you compute the score for all CTQs, the ones with the highest scores are the highest priority Six Sigma project objectives to work on.
Free Quality Function Deployment (QFD) Matrix Templates
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