Reference no: EM132079974 , Length: 4700 Words
DESIGN REQUIREMENTS
SELF-ASSESSMENT QUESTION
1. LIST THE CUSTOMER REQUIREMENTS
How many things you can think up under each heading. Remember that the requirements have to be expressed in the language of the average customer, not a trained engineer.
Efficiency
Durability
Ease of use
Appeal
2. EVALUATE THE WEIGHTINGS
Determine the percentage weightings for these requirements, have provided a grid for the purpose. If you prefer, feel free to draw your own
grid with your own requirements:
3. ENGINEERING REQUIREMENTS
What do you know about bicycle dynamos? List what you feel are the key technical features of these systems, cite the appropriate units where applicable.
4. RELATIONSHIPS BETWEEN CUSTOMER AND ENGINEERING REQUIREMENTS
Decide what, if any, relationships exist between the two sets of requirements. For each customer requirement, we ask what degree of influence will each of the engineering parameters have upon it.
For a strong influence we enter an asterisk * in the matrix.
For a medium influence we enter a triangle ?.
For a weak influence we enter a circle O.
If there is no real influence, nothing is entered.
Fill in your QFD chart now.
5. RELATIONSHIPS BETWEEN ENGINEERING REQUIREMENTS
Can you detect any relationships between the engineering parameters. Where you feel that there is a link, enter a large dot in the triangular matrix.
6. COMPETITORS AND THE TARGET PRODUCT
Our existing, and poorly selling, current product has the following specifications:
Power output 2.8 W
Efficiency 25%
Mass 400 g
Our competitors' products line up as follows:
| Competitor |
Power(W) |
Efficiency(%) |
Mass(g) |
Bulb |
| A |
3.2 |
35 |
350 |
Halogen |
| B |
3 |
22 |
320 |
|
| C |
3 |
30 |
380 |
|
Fill in the bottom section of the QFD chart now. Include a 'target' product that could be used as a partial specification for a new design.
7. ANALYSING THE DIAGRAM
The finished QFD chart. What can we determine from it?
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