Data
How information is structured, owned and trusted.
The Data layer designs what data means, who owns it, and which system holds the authoritative record.

The design rules for this layer.
Authoritative Single System of Record
Each core entity (Customer, Order, SKU, Contract) has exactly one source of truth. All other systems subscribe as read-replicas.
Continuous Automated Reconciliation
Data integrity is enforced continuously at system boundaries via cryptographic hash checks and automated checksum audits.
Immutable Lifecycle Lineage
Financial, inventory, and lifecycle records are stored in append-only streams with complete provenance and audit history.
What we produce for this layer.
Master Data Governance Matrix
Domain ownership map establishing authoritative system boundaries and write-permissions for every corporate entity.
Canonical Enterprise Data Dictionary
Standardized entity definitions, field formats, and validation rules shared across all operational systems.
Zero-Loss Replication Pipeline Specs
High-throughput synchronization protocols between core transactional databases and analytical engines.
Data Retention & Compliance Architecture
Automated retention and cryptographic purge policies compliant with GDPR, KVKK, and regulatory standards.
What changes when this layer is designed.
- •The same entity defined differently in five systems
- •No agreement on which system is the source of truth
- •Data reconciled manually, after the fact
- ✓A single, agreed definition for every core entity
- ✓Clear ownership of every data domain
- ✓Systems that reference one source of truth
Designed to work with the enterprise systems you already use.
ACHORD does not replace the systems you already paid for. We design how SAP, Oracle, Microsoft Dynamics, Salesforce and your custom applications exchange data, reconcile it, and hand off decisions.