Quality Function Deployment (QFD)

Question 1

Quality Function Deployment (QFD) and House of Quality (HOQ)

Answer 1

• structured approach for defining customer requirements and translating design specifications or product control characteristics in the form of a planning matrix. In other words, using QFD allows the charting of customer wants and the technical hows, which results in a better understanding of design relationships.
• planning process for products and services that starts with the voice of the customer. Basically, it enables people to think together. You can also include a competitive analysis. People on your team will be better aligned and able to think together towards a solution.

Question 2

Why Quality Function Deployment?

Answer 2

• Effectively communicate the customer requirements and strategically prioritize efforts throughout the organization
• it is a customer-driven process for planning products and services
• It helps to identify important parameters to include in the design
• Allows to compare the design parameters with competitor products
• Reduces the development time and cost-effective

Question 3

Importance of Quality Function Deployment (QFD) and House of Quality (HOQ)

Answer 3

Yoji Akao first developed quality Function Deployment in Japan in 1966. QFD in the early stages of the design phase helps to incorporate all the customer needs into the final product. Furthermore, it is a planning tool to determine the key areas in which the effort should focus in relation to our technical capabilities.

Question 4

Four Primary Phases of QFD

Answer 4

1. Product Planning
2. Product Design
3. Process Planning
4. Process Control (production planning)

Question 5

QFD Flowchart

Answer 5

Question 6

1. Product Planning

QFD

Answer 6

• Identify customer requirements
• Translating VOC into design specifications or product control characteristics in the form of a planning matrix
• Prioritize requirements
• Evaluate competition and prioritize requirements

Question 7

2. Product Design

QFD

Answer 7

• Generate design ideas or concepts
• Translate the outputs of the product planning phase into individual part details that define part characteristics
• Identify product risks
• Define he product specifications

Question 8

3. Process Planning

QFD

Answer 8

• Defines the product development process and establishes critical component parameters
• Establish critical process controls
• During process planning, create a manufacturing process folwchart, and process parameters (or target values) are documented

Question 9

4. Process Control (Production Planning)

QFD

Answer 9

• Define the production requirements for each component/operation
• Establish inspection and test methods
• Define performance indicators to monitor the production process