What is special about the medical decision is not only in the fact that it is making to others, but also in that it must be taken in a collegial and shared by involving all concerned. This decision must usually be made quickly, significantly reducing the time for deliberation beforehand. It is therefore essential that physicians and caregivers who participate is a "database" of all their previous decisions to feed on them may reflect their decisions to come, mainly for the purpose of do not get carried away by their emotions when they are in an emergency.