What question did this study set out to answer?

The main aim is to validate the Gateway Domain-Centric Routing (GDCR) framework for enhancing API governance and reducing complexity in enterprise IT architecture.

February 21, 2026Open Access

Gateway Domain-Centric Routing: A Vendor-Agnostic Metadata-Driven Architecture for Enterprise API Governance - Version 5.1

Puntos clave

The main aim is to validate the Gateway Domain-Centric Routing (GDCR) framework for enhancing API governance and reducing complexity in enterprise IT architecture.
Conducted a Proof-of-Concept campaign in SAP BTP Sandbox and Trial environments.
Evaluated architectural correctness, determinism, and governance impact of metadata-driven routing.
Assessed structural reductions in API proxies and integration packages across multiple business domains.
Achieved approximately 90% reduction in API proxies and integration packages.
Deployment time was reduced from 273 minutes to 14.5 minutes (≈95% faster).
Success rate reached 99.92–100% during testing with no routing errors or timeouts.

Resumen

Gateway Domain-Centric Routing (GDCR) – Version 5. 1 - by Ricardo Luz Holanda VianaA Vendor-Agnostic Metadata-Driven Architecture for Enterprise API GovernanceJavaScript “Maverick Ghost” Reference Implementation v15. 1 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Update: February 19, 2026 GDCR Article v5. 1 – Final Release Major additions to the technical document: • Section 1 – Executive Summary rewritten: Added "The Challenge" (proxy/package sprawl problem statement), "The GDCR Solution" (business-semantic alignment), and closing vision statement positioning GDCR as a universal pattern, not a product. • Section 3. 5 – Operational Deep Dive expanded: Introduced the "Maverick Ghost Facade" hybrid routing model with detailed Layer 1 (static MatchesPath) + Layer 2 (dynamic KVM metadata resolution) architecture. Included scalability metrics, performance breakdown (sub-5ms overhead), and TCO comparison tables. • Figures added: Static route rule screenshots for Sales O2C (13 MatchesPath conditions: orders, customers, payments, invoices, deliveries, returns, quotes, pricing, credits, collections, contracts, disputes, revenue) and Finance R2R (13 conditions: invoices, payments, accounts, journals, expenses, receipts, budgets, taxes, treasury, reconciliations, closing, reporting, assets). • Appendices reorganized: Appendix A: Stress the author assumes no liability for usage. Evolution to v15. 1 — The Maverick Ghost Edition All validation milestones above were executed using JavaScript v14. 2 as baseline. Version v15. 1 (Maverick Ghost) introduces algorithmic optimizations (binary search O (log n), zero-allocation string handling, strict normalization rules) that further reduce routing latency and improve determinism. These improvements do not change the architectural conclusions, but reinforce that GDCR’s control-plane model scales without becoming a performance bottleneck. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ RELATED WORK Blog Posts: • Medium: Gateway Domain-Centric Routing https: //medium. com/@rhviana/gateway-domain-centric-routing-a-vendor-agnostic-api-architecture-52ad30d1d1d9 Code: GitHub repo under construction: https: //github. com/rhviana/gdcp - Under Construction release date 27/02 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ALTERNATIVE NAMES (FOR SEARCH/DISCOVERY) GDCR has been called by different names in different contexts: • DCRP (Domain-Centric Routing Pattern) • MDAGR (Metadata-Driven API Gateway Routing) • DOAGA (Domain-Oriented API Gateway Architecture) • APSRA (Anti-Proxy-Sprawl Routing Architecture) • Informal: "The Viana Pattern", "Commander's Brain", "Maverick Ghost" Pick whichever resonates with your architecture style. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CONTACT Ricardo Luz Holanda Viana Independent Researcher & SAP Integration Architect 📧rhviana@gmail. com LinkedIn: https: //www. linkedin. com/in/ricardo-viana-br1984/ Medium: @rhviana Questions, feedback, and collaboration inquiries welcome. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ LICENSE & TRADEMARK License: CC BY 4. 0 (share, adapt, commercial use OK with attribution) Trademark: Maverick Engine™ is a trademarked component of GDCR. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ACKNOWLEDGMENTS Thanks to the SAP Community for feedback on DCRP/PDCP, and to the architects who validated this in real sandboxes. No external funding—just independent research. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CITATION APA: Viana, R. L. H. (2026). Gateway Domain-Centric Routing: A Vendor-Agnostic Metadata-Driven Architecture for Enterprise API Governance - Version 4. 0. Zenodo. 10. 5281/zenodo. 18582492 | https: //doi. org/10. 6084/m9. figshare. 31331683 BibTeX: @techreport gdcr-paper-v4. 0, author = {Viana, Ricardo Luz Holanda, title

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