Discussion


With several types of relations, simply using ``relation'' to denote one type is often inconvenient. The modifier ``snapshot'' is widely used (+E3). In addition, it is easy to use and seems precise and intuitive (+E2,9,8). The alternative ``conventional'' is longer and used more infrequently. Further, ``conventional'' is a moving target—as technologies evolve, it changes meaning. This makes it less precise. Finally, ``static'' is less frequently used than ``snapshot,'' and it begs for the definition of the opposite concept of a dynamic relation, which will not be defined (-E3, -E1).