1. Evaluating Design Alternatives
Criteria
Alternative 1
Alternative 2
Visibility +
Longevity -
Emissions
Eraseability +1

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3. Pugh Method for Evaluating Design Alternatives
Step 1: Identify a set of criteria describing the needs and wants of the customer.
Step 2: Select a baseline solution. An existing product is often used as a baseline.
Step 3: Compare the options with the baseline as better (+), worse (-), or the same (0).
Step 4: Make a decision.
The design alternative with the highest score may be selected.
Identify your favorite features in the lower scoring design alternatives.
See if you can find a way to bring all of your favorite features into your chosen design.
Step 5: Repeat steps 3 and 4 until you are satisfied!
Criteria
Alternative 1
Alternative 2
Visibility +
Longevity -
Emissions
Eraseability +1

4. Modified Pugh Method
Weights may be applied to criteria to express their importance.
Criteria
Weight
Alternative 1
Alternative 2
Visibility 2 +2
Longevity 1 +1 -1
Emissions 3 -3 +3
Eraseability
Adding weights may lead you to choose a different design alternative.

5. Decision Matrix
Adding scores along with the weights helps to show the overall importance of design features.
Criteria
Weight
Alternative 1
Alternative 2
Rating
Score
Visibility 2 +3 +6
Longevity 1 +2 -2
Emissions 3 -1 -3 +1
Eraseability +5