Using a Decision Matrix

A decision matrix is used to compare ideas against one another, using specific criteria. To use the decision matrix, we follow the following steps.

Step 1: List down all the ideas.


What material would be best for creating models of puzzle pieces?

Idea 1: Modeling clay 

Idea 2: Caramel cubes

Idea 3: Dice

Idea 4: Centimetre cubes 

Idea 5: Foam blocks 

Step 2: Identify criteria which will be used to evaluate the ideas. 


  • Cost
  • Reusability
  • Geometry
  • Connection
  • Cleanliness
  • Resilience
  • Testability

Step 3: A grading scale must be developed to assign values for each criteria category.


Last modified: Friday, 17 March 2017, 1:52 PM