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Run-Time Assurance/ RTA

Safety architecture that monitors and overrides untrusted autonomy at run time.

Definition

Run-time assurance pairs a high-performance, possibly learned controller with a verified safety monitor that can intervene when state approaches an unsafe envelope. ASTM F3269 codifies the bounded-behavior pattern, and the simplex architecture is the canonical example. RTA is a primary mechanism for fielding non-deterministic autonomy on safety-critical CCA platforms while preserving DO-178C-style assurance.

Reference attributes

Reference: ASTM F3269
Pattern: Simplex (complex + safe controller)
Function: Bound non-deterministic components

Related terms

Simplex Architecture
Run-time assurance pattern with a verified backup controller and decision monitor.
DO-178C
Software-considerations standard for airborne systems certification.
Autonomy Reference Architecture (ARA)
Government-owned reference design for layered autonomy stacks on CCA-class platforms.

#safety#autonomy