This is a DRAFT schema. It is currently unstable. Taken from https://github.com/tommite/pubs-code/tree/master/mcdadm-aor. Changed namespace, which was unfortunately incorrect. In each set, if ordering is required, it is assumed to be ascending (first element = least preferred). A function of the form u(x) = 1 − e^{-ax} If not present, the measurement is interpreted as if it had a value equals to true. It is recommended, though not mandatory, to only use this feature when the false values are skipped. To encode a relation over sets A × B, with A, B in {alternative set, attribute set, criterion set, category set}, A ≠ B, two possibilities exist as the from and to may be inverted. Please use as from type the one coming first in the list [alternative set, attribute set, criterion set, category set]. Note this also holds for other valued relations.