This is new to me, too. So, what do we mean by desirability here?
It is a single number that describes how well a person’s performance comes to meeting the targets for all requirements simultaneously.
An article on iSixSigma has a good discussion about it.
The math in the desirability score card requires practitioners to know what the customer wants and what they will accept, known as voice of the customer (VOC); and what can be delivered and with how much variation, known as voice of the process (VOP).
