A data map inventories systems and repositories with their data types, retention settings, custodians, geographic location, and export capabilities. It may be maintained as part of information governance or built for a specific matter.

It supports preservation scoping, collection planning, and burden arguments.

Alternative Names:

Data Inventory, ESI Data Map

Why it Matters?

An organization without a data map cannot credibly scope preservation, estimate collection cost, or argue that a source is not reasonably accessible, because each of those requires describing what exists. Building one during litigation is slower and more expensive than maintaining one, and the version built under deadline pressure is usually incomplete in ways that surface later.

Frequently asked questions

What does a data map contain?

What does a data map contain?

Systems and repositories, the data types each holds, retention settings, custodians, geographic location, and how data can be exported.

Why does its absence matter?

Why does its absence matter?

Because proportionality, accessibility, and burden arguments all require describing what data exists and what retrieving it would cost.