glossary term · cross business
Human in the loop
Learn what human in the loop means through a plain-language definition, a synthetic business example, practical limits, and links to workflow guides.
Definition
Human in the loop means a person has a defined role in reviewing, correcting, or authorizing part of a workflow. For approval to control an action, it must happen before that action and apply to the exact version being executed. The reviewer needs the source evidence, authority to decide, and a meaningful way to stop or reject.
Owner example
Synthetic example: A reviewer compares intake fields with the original submission and approves version 3 for a test CRM record. Changing the email creates version 4 and requires a fresh decision. Silence leaves the proposal pending.
Non-example and limitation
A person receiving a notification after an email was sent did not approve that send. A reviewer without evidence or time to inspect the output provides weak oversight even if the interface has an approval button.
Related terms
Permissions constrain access; evaluation checks behavior against expectations. Neither is replaced by an approval label.
Deeper guide and practical link
Read approval boundaries for the fuller explanation. Use the illustrative approval-gate specification to apply the distinction to a bounded task.
Sources and scope
This is an original editorial definition with a synthetic example, not a report of a tested implementation or business result. Suggest a correction.
Change notes
Foundation draft prepared October 20, 2026. No public publication or successful live-tool test is claimed.
Next learning step: Decide which AI actions need human approval