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Design & Architecture

This page provides a deep dive into the internal design of QWED-Finance.

System Overview​

Guard Architecture​

Component Diagram​

Verification Flow​

State Machine​

Data Flow​

Verification Receipt Lifecycle​

Cross-Guard Pipeline​

Engine Selection Matrix​

Class Diagram​

Deployment Architecture​

Design Principles​

1. Determinism First​

Every verification produces the same result for the same input. No randomness.

2. Symbolic Over Statistical​

Use mathematical proofs (Z3, SymPy) instead of probabilistic confidence scores.

3. Audit by Default​

Every verification generates a receipt. No silent failures.

4. Defense in Depth​

Cross-Guard combines multiple guards for layered security.