A controls and avionics concept defining sensing, computation, and actuation used to guide, navigate, and control vehicles in air or space. It governs data acquisition, estimation, control logic, and fault handling needed to meet stability and mission objectives. It does not provide safe control without validated software, robust redundancy, and appropriate integrity monitoring. It materially affects safety and mission success by determining guidance accuracy, stability margins, and automation performance. The concept is generally stable, though architectures and computational methods evolve over time.

Principle

Provide an auditable and complete trail of evidence that links the executed test steps to outcomes and to the requirements or acceptance criteria they exercise.

Demonstration

A flight‑test report that contains the aircraft configuration file, sensor calibration constants, telemetry logs, computed navigation error statistics for each test segment, time‑synchronization records, and a signed conclusion that indicates pass/fail against specified position and integrity thresholds.

Misapplication

Using a short summary instead of delivering the underlying datasets and configuration details, or omitting deviation records so that failures cannot be traced to causation.

Consequence

Produces the evidentiary basis for corrective action, regression analysis, certification packages, and supplier feedback; supports reproducibility and forensic review after anomalies.

Reversal

A report without a linked procedure is an orphaned record; reversing role to treat reports as procedures undermines traceability and reproducibility.

Boundary

Records outcomes and evidence but does not in itself remediate faults; corrective work and design changes are tracked elsewhere and may reference the report.

Semantic Tension

Often confused with an anomaly report or a certification dossier; a test report is the executed evidence and analysis for specific test events, not the separate administrative or regulatory submissions that may follow.

Synthesis

A structured and auditable archive of what was run, what happened, and how results compare to acceptance criteria for a guidance and navigation test activity.