Evaluation matrix should have some type of scale to represent each software option and how well it corresponds to the requirements.

This could be on a scale of 1 to 5 where 1="does not meet requirements" and 5="exceeds requirements".  This scale could also be a range of 1 to 3 to make evaluation easier where there is less to differentiate.

Alternatively, this could be a simple "yes or no" tick box for basic functionality.