Communication · Executive Insight Brief · 416
Repetition needs active comparison
Readback/hearback makes message accuracy observable by requiring critical content to be repeated and the sender to compare that return with the intended instruction.
Premise
Readback/hearback distributes responsibility for safety-critical communication across sender and receiver. The sender issues an instruction, the receiver repeats the critical content, and the sender actively compares that return with what was intended, correcting any mismatch before action. ICAO standard phraseology adds a second control by reducing unnecessary linguistic variation. The executive principle is redundancy with verification: repetition alone is not a closed loop.
What the model is: Readback/Hearback and ICAO Standard Phraseology in Knowledge →

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- FamilyTool
- CategoryProtocols & Standards
- DomainRisk, Crisis & Safety
What these mean
Editorial orientation · Family
Tool
In this series, Tool names the editorial family primarily used to act on, examine, measure or organize communication. It includes instruments, methods, practices, protocols, codes and institutional arrangements. Membership does not certify effectiveness, portability or safe use in every setting.
Editorial orientation · Category
Protocols & Standards
Defines shared rules, standardized sequences or requirements for actions and exchanges. Its practical contribution is an explicit basis for coordinated use or conformity within a specified scope.
- KnowledgeReadback/Hearback and ICAO Standard Phraseology
- Key conceptJargon
- Key conceptMiscommunication
- Key conceptMisunderstanding