P08501: Roller-based fuser test bed
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Establish Target Specifications

Table of Contents

Step 1. Prepare the List of Metrics

The table below presents the metrics, or engineering specifications, that will be used by the team to design against.

List of Metrics
Metric No. Metric Importance Units
1 High Durability -
2 Low power to operate nominal
3 Low weight +
4 Low Vibration +
5 Low noise +
6 High customer usability +
7 High control accuracy nominal
8 High sensing accuracy -
9 High page rate -
10 Media types -
11 Small machine footprint +
12 Software Kill Switch -
13 Hardware Kill Switch -
14 Mechanical Model -
15 Roller Types -
16 Low cost nominal
17 Low time to complete nominal
18 High fusing quality nominal

The table below compares the engineering metrics to the customer needs.

Customer Needs as Related to Engineering Metrics Matrix
Needs and Metrics Engineering Metric 1 Engineering Metric 2 Engineering Metric 3 Engineering Metric 4 Engineering Metric 5 Engineering Metric 6 Engineering Metric 7 Engineering Metric 8 Engineering Metric 9 Engineering Metric 10 Engineering Metric 11 Engineering Metric 12 Engineering Metric 13 Engineering Metric 14 Engineering Metric 15 Engineering Metric 16 Engineering Metric 17 Engineering Metric 18
Simulate roller based fuser 3 1 3 3 10 3 3
Project deadline (22wks) 9
Cost Factor 9 9
Size constraint 3 9 9
Safety 3 3 3 1 9 9 3
Stamp Roller Comparison 3 1 1 9 9 1 3 9
Documentation 9
Conveniently Powered 9 3
Durability 9 3 1
Control and Measurement of Speed 9 9
Control and Measurement of Temperature 9 9
Control and Measurement of Pressure 9 9
Modular Substrates 9
Modular Roller Materials 9
Modular Toners 9
User Interface 9 3 3 3 3 3 3 3

Step 2. Collect Competitive Benchmarking Information

Relatively few Sr. design projects start from a clean sheet of paper. In most cases, there are some baseline solutions or products that could meet the vast majority of the customer's needs.

Write one or two paragraphs about each benchmark solution from the market place. Include a picture of the product, preferably illustrating the product in use or operation.

Benchmark 1
Describe the first benchmark solution here.
Benchmark 2
Describe the second benchmark solution here.
Benchmark 3
Describe the third benchmark solution here.

Use this table below to compare how pre-existing solutions should compare against the design team's efforts. See the example Table 5-6 on Page 80 of the text by Ulrich and Eppinger.

Competitive Benchmarking Matrix
Metric No. Need Nos. Metric Importance Units Benchmark 1 Value Benchmark 2 Value Benchmark 3 Value
1 Need 1,3
2 Need 2,6
3 Need 1,3
4 Need 1,3
5 Need 4
6 Need 5

Step 3. Set Ideal and Marginally Acceptable Target Values

Given the customer needs, awareness of the marketplace, and resource limitations of the current project, assign preliminary engineering specifications on each of the metrics. In addition to setting the nominal or target value or each specification, provide guidance to the team on the ideal value or direction that the team should strive for, once the nominal target values have been realized.

List of Metrics
Metric No. Need Nos. Metric Importance Units Marginal value Ideal Value
1 Need 1,2
2 Need 2,4
3 Need 5
4 Need 6
5 Need 5,1
6 Need 6,2

Step 4. Reflect on the Results and the Process

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