Data Domain-Centric Pattern ( DDCP ) - The Semantic Domain Data Layer of the SDIA Ecosystem - v1.0 - FINAL

DDCP — Data Domain-Centric Pattern Layer 5 of the SDIA Ecosystem — v1.0 DDCP is the semantic topology governance layer for persistent data fabrics within the SDIA ecosystem (Semantic Domain Integration Architecture). Its role is not to define query logic, storage tuning, or data-processing pipelines, but to govern how persistent data artifacts — databases, schemas, tables, collections, buckets, cache namespaces, datasets, and snapshots — are named, segmented, owned, and audited. In DDCP, the domain becomes the primary key of all persistent data topology. The same domain token that appears at the gateway (GDCR), routing (DDCR), orchestration (ODCP), and event (EDCP) layers continues unchanged into the data layer. The artifact is not immutable. Governance, ownership, and traceability are the goals. What DDCP covers: ↳ Databases and catalogs↳ Schemas and namespaces↳ Tables and collections↳ Object storage buckets and prefixes↳ Cache namespaces and cache keys↳ Analytical datasets and views↳ Snapshots and exports Canonical vs Derived Data: Canonical data — owned by the producer domain. Example: sales_orders_order_header Derived data — created for analytics, reporting, exports. Example: finance.invoicing.order.reporting ABNF grammar (RFC 5234) for persistent data artifacts.PVRL Level 5 validation rules.Domain Authority ownership and lifecycle governance.Domain-scoped security policies (sales_%, sales:*, sales/orders/*). This is the initial publication of DDCP. Further updates may follow as the pattern matures in real-world data landscapes. Author: Ricardo Luz Holanda Viana · ORCID: 0009-0009-9549-5862Repository: github.com/rhviana/deipDEIP Ecosystem DOI: 10.5281/zenodo.19004802License: CC BY 4.0 Citation: Viana, R. L. H. (2026). Data Domain-Centric Pattern (DDCP) — Version 1.0. Zenodo. https://doi.org/10.5281/zenodo.19730519 The domain is the map. The storage engine is the territory. A map that matches the territory never lies. 👁️