問題文
A publisher introduces three classification levels but writes no handling rules to go with them. Six months later, staff apply the labels inconsistently and nobody can say what a label actually requires. What was missing from the scheme?
選択肢
- The publisher needed to apply the labels automatically with a tool, because staff will never label material correctly by hand, and human judgment always drifts.
- Each level needed handling rules attached to it covering storage, transmission, sharing, retention and disposal because a label only changes behavior when it maps to concrete obligations that staff can follow.
- The publisher needed to encrypt everything at the highest level, so that the choice of label would stop mattering to anyone handling the material day to day.
- The publisher needed more levels, because three cannot express the differences between the kinds of material a publisher handles, so staff had to pick labels that did not fit the material.