What is label source of truth?

• A. Central spreadsheet/CMDB or DCIM tool used for patch plans and audits.
• B. The local laptop only.
• C. Email threads.
• D. Printed post-it notes.

Answer: (A)

In IT asset and change management, the label source of truth is the centralized, authoritative data store that records the official mapping of labels to assets and the current state of those assets. Using a central spreadsheet, CMDB, or DCIM tool as this source ensures there is one agreed-upon reference that everyone relies on for labels, patch plans, and audits. It provides governance, version history, and audit trails, so you can track changes, verify what is labeled what, and prove compliance during audits.

Relying on a local laptop, email threads, or printed notes breaks that single reference. They’re informal, easily lost or out of date, and hard to reconcile across teams. If someone updates a label in a notebook or a message but others don’t see it, or if the file gets corrupted, you end up with drift between what’s documented and what’s in the field, which undermines patch planning and audit accuracy. A central source of truth keeps labeling consistent, auditable, and up-to-date, which is essential for effective patch management and reliable audits.