as400toawsAdvisory Group
Architectural Guide Whitepaper

The Definitive AS/400 to AWS Modernization Roadmap (2026)

Phase 1: Ingestion Mapping & Dependency Discovery

Enterprise source code must undergo deep structural audits before compilation begins. Tooling modules run library searches across source physical members to build clean dependency call graphs and track environmental flags.

Phase 2: Source Code Sanitization

Legacy architectures contain positioning edge cases that disrupt cloud-native engines. Automated syntax sanitization scripts locate and re-align positional markers, preparing standard code structures optimized for flawless translation runs.

Phase 3: Relational Modernization & Live Cutover

Physical and Logical system configurations are reverse-engineered into relational SQL tables. Utilizing Change Data Capture (CDC) streaming architectures, transactional records sync dynamically with target instances up to the cutover window.

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