Multi-criteria Decision Making

So far, as far as I know, all the different possible decision criteria/objectives are combined into one number (usually NPV) to be able to come up with decision suggestions and calculate EVPI and so on.

It would be nice, to be able to report on the "raw" decision outcomes (might be CO2, money, a nutrition metric, ...), be explicit about trade-offs and then weight them in the very last step (possibly consulting decision-makers / stakeholders again). "Option A is more slightly climate-friendly, but option B is a lot more profitable, ... We decided for option X because of ..."

The HoliDA package will be built to support this kind of workflow. Maybe already conceptualize it this way in the course/book/paper?