The concept screening or Pugh datum method technique is a variant to the decision matrix in which alternatives are compared to an (existing) baseline alternative.
The Decision Matrix is a technique making use of alternatives, criteria and possible criteria weights. Criteria weights can be determined by intuition and paired comparison. You can also execute this matrix without weighted criteria. If you are using weights, you can decide to distribute a limited number of points over the criteria or compare criteria pairwise.
The Harris profile is a visual form of the decision matrix, and is an easy technique in which criteria and alternatives are considered using positive and negative scores. Please note that similar rules as described in the decision-matrix technique apply, and criteria can also be weighted.
Kepner Tregoe Matrix
The first part of the Kepner Tregoe matrix is going through a normal Decision Matrix. Afterwards, the top 3 from this matrix is selected for analysis in the matrix shown just above.
The NAF/NUF test scores alternatives based on their novelty, attractiveness or usefulness, and feasibility.