DDC
Evidence-driven assurance across authority, evidence, state transition, contradiction, execution and consequence boundaries.
Technology
The methods and tools behind the services.
Technology pages explain components developed or used by DDCAL. A technology name is not itself a service scope or assurance conclusion.
Agent Replay
Reconstructs agent traces, receipts and logs while preserving uncertainty, branch structure and evidence timing.
Action Receipt
Binds actor, authority, requested action, observed state, policy and execution evidence.
Physical Gate
Assurance for consequential actions involving physical devices, state and environment.
BoundaryProof
Tests whether intended, authorized and observed transitions agree at defined boundaries.
RadialD / DDC Radial
Cross-dimensional consistency and contradiction review used to challenge assumptions before relying on a result.