Appendix E: Operational Metrics for Reconstruction-Grade Programs

Reconstruction-Grade programs benefit from operational metrics that quantify coverage, risk, and time-to-use.

Table 9. Example operational metrics

Metric	Why It Matters
Context coverage	Percent of modern attachments resolved to a preserved as-sent version; percent with stable identifiers captured.
Exception rate	Percent of referenced objects that resulted in exceptions; breakdown by reason code.
Audit correlation coverage	Percent of preserved objects with correlated audit evidence in relevant windows.
Identity coverage	Percent of custodians with effective-dated identity history available for relevant periods.
Reproducibility score	Percent of exports that reproduce identical manifests and hashes when rerun under same scope definition.
Time-to-use	Elapsed time from matter trigger to first usable export (not time-to-backfill).
Scope precision	Ratio of preserved-to-reviewed volume; trends over time as identification improves.

These metrics support continuous improvement and create an evidence-based operating discipline, rather than a one-off collection exercise.