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Also known as: Registry Style MDM, MDM Registry
An MDM style that maintains a central index of master data with source links, leaving authoritative records in source systems.
DESCRIPTION
Registry architecture links and harmonizes master data without centralizing full records. It builds a cross-reference and golden record view via matching and survivorship, while data remains in operational systems. This reduces disruption and simplifies adoption, at the cost of runtime dependence on sources. It suits organizations seeking low-latency federation and minimal source change. Governance defines match rules, data quality, and access policies for the registry.
ALTERNATIVE DEFINITIONS
Wikipedia
In the registry style, the master data remains in source systems and the MDM hub maintains an index with links and minimal attributes.
Highlights non-intrusive indexing and linkage rather than central storage.
IBM
Registry-style MDM leaves data in the source systems and creates a central index of records to reconcile duplicates and link systems of record.
Emphasizes duplicate reconciliation and source system linkage.
RELATED TERMS
Master Data Management Identity Resolution Cross-Reference Index Survivorship Data Virtualization Transaction Hub Governance
COMPETING TERMS
Consolidated Approach Coexistence Style
KNOWLEDGE AREAS
Reference & Master Data Data Integration & Interoperability Data Architecture Data Management
TARGET AUDIENCE
Data Architect Data Steward Data Engineer Data Management Consultant Chief Data Officer
EXTERNAL SOURCES
- Wikipedia - Master data management
- Informatica - MDM overview including implementation styles
- Oracle - MDM concepts and architecture patterns
- IBM - MDM styles, benefits, and use cases
TOP QUESTIONS
What is Registry Architecture in MDM?
It maintains a central index and golden view while leaving authoritative data in the original source systems.
Category: Definition
When should you choose Registry Architecture?
Use it to minimize intrusion into source systems and to quickly link data across silos with low operational change.
Category: Guidance
How does Registry Architecture compare to Consolidated Approach?
Registry keeps data in sources, while consolidation centralizes golden records for analytics and downstream consumption.
Category: Comparison
What are the main components of a registry-style MDM?
Matching, cross-reference index, survivorship rules, minimal attributes, and linkage to systems of record.
Category: Overview
What are common pitfalls with Registry Architecture?
Over-reliance on source availability, weak match rules, and inadequate governance of survivorship policies.
Category: Mistakes
How does performance scale in a registry-style MDM?
Blocking/indexing for matching and caching of reference views help, but real-time lookups may depend on source latency.
Category: Performance
How is data quality handled in a registry?
Quality is monitored centrally, but root-cause remediation often occurs in source systems via stewardship workflows.
Category: Quality
What integration patterns suit a registry architecture?
CDC to capture changes, APIs for lookup, and near-real-time event integration for updates.
Category: Integration
What security considerations apply to a registry?
Minimize stored PII, enforce role-based access, and secure source links to prevent unintended disclosure.
Category: Security