Cross-Domain Cascade Composition
by Nick Clark | Published April 25, 2026
Cascades propagate across operational domains: defense-civil, energy-transport, communication-financial. The architecture composes cross-domain cascade analysis through declared cross-domain mappings.
What It Specifies
Cross-domain dependencies enter the topology graph with cross-domain credentials. Cascade analysis traverses the dependencies across domains; the cross-domain analysis carries credentials from both source and target domains.
Cross-domain composition is governance-credentialed. The composition authority, the cross-domain mapping, and the resulting cascade analyses all enter lineage; downstream audit verifies cross-domain analysis structurally.
Why It Matters Structurally
Single-domain cascade analysis faces structural blindness to cross-domain effects. Real cascades cross domain boundaries; the architecture must support the crossings structurally.
Cross-domain composition produces structural support. The architecture admits cross-domain dependencies; cascade analysis traverses the dependencies; cross-domain mitigation proceeds through coordinated authority.
How It Composes With Mesh Operation
The architecture defines the cross-domain mapping format, the cross-domain analysis primitives, and the cross-domain mitigation coordination. Implementations apply the architecture; cross-domain operations proceed structurally.
Composition with other features. Cross-jurisdictional cross-domain composition, byzantine-robust cross-domain analysis, and dispute mechanism for cross-domain disagreements all build on the composition primitive.
What This Enables
Defense-civil cascade analysis (defense-grid interactions, defense-communication interactions) gains structurally-supported composition. Civilian cross-sector resilience gains the same.
The architecture also supports composition evolution. As cross-domain dependencies are characterized through operational experience, composition mappings update through governance procedures.
