Proportionality
Proportionality is the governance principle that the effort, cost, and scope of managing, preserving, searching, or producing records should be reasonably balanced against their value, risk, and the stakes of the matter at hand.
Proportionality holds that recordkeeping and discovery obligations should be met with measures that fit the importance of the information and the matter, rather than exhaustive effort applied uniformly to everything. It is a cornerstone of defensible information governance because organizations cannot preserve, review, or produce every byte without prohibitive cost, so they must weigh the burden of an action against its likely benefit, the amount in controversy, the parties’ access to information, and the records’ evidentiary or business value.
In practice, proportionality shapes how broadly a litigation hold sweeps, how deep an e-discovery search runs, and how long low-value information is retained. For example, restoring decades-old backup tapes to recover a handful of marginally relevant emails may be disproportionate when the dispute is small and the data is duplicative elsewhere. The principle also justifies routine, schedule-driven disposition: defensibly destroying records under a documented retention schedule is proportionate stewardship, not evidence suppression, provided no preservation duty has attached.