Method — Human-in-the-Loop

Identity

Human-in-the-loop describes a system configuration in which human input, intervention, or validation is integrated into system operation, influencing decision processes, outputs, or state transitions.

It links automated processes with human judgment, establishing a structural dependency between system behavior and human participation within defined interaction points.

This reference defines human-in-the-loop as a structural concept independent of specific technologies, implementations, or regulatory interpretations.

Scope Boundary

Included

• Systems requiring human input within operational workflows
• Human validation or approval of system outputs
• Intervention mechanisms affecting automated processes
• Decision structures combining automated and human judgment
• Feedback loops incorporating human evaluation into system behavior

Excluded

• Fully autonomous systems without human interaction points
• Passive human observation without influence on outcomes
• Purely manual processes without system integration
• Vendor-specific implementation details
• Regulatory or compliance interpretation frameworks

Structural Phase Model

Phase 1 — System Operation

The system processes inputs and generates intermediate or final outputs based on internal logic or automated procedures.

Phase 2 — Human Interaction

A human actor reviews, evaluates, or modifies system outputs within defined interaction points or control interfaces.

Phase 3 — Decision Integration

Human input is integrated into the system, influencing decisions, outcomes, or subsequent system behavior.

Phase 4 — System Continuation

The system proceeds with updated state or decisions, incorporating human input into ongoing operation or future processes.

Interpretation Constraint

This reference provides structural terminology and conceptual boundaries only. It does not define implementation methods, regulatory requirements, or legal interpretations.