Weights are where a scorecard states its priorities. If resolution is worth 30 points and tone is worth 5, the team knows what the business is optimising for, and if those numbers are reversed, they know that too.
Weights conventionally sum to 100 so the score reads as a percentage.
In QXAI
You set the weight on every parameter and sub-parameter. The overall score is the weighted average, subject to any fatal or ZTP failure overriding it.