The Impact and Urgency in SMAX is useable by pre-defined definitions.
But the Risk has to be set manual (No risk, Low risk, Some risk, Moderate risk, High risk, Very high risk).
The results are therefore very error-prone and person-dependent
A function to calculate the correct risk are useful. I.e. via SMAX App based on predefined questions and answers.
It's could be also a good idea to predefine the Change SubCategory (Minor, Significant, Major) based on a pre-defined matrix based on Impact, Urgency and Risk. Therefore the human error factor can be reduced.