Hovedregistrer

Hovedregistrer is a term used in Norwegian information management to describe one or more authoritative master registries designated as the source of truth for a specific domain. In public administration and large organizations, a hovedregistrer serves as the central repository for master data, such as persons, organizations, addresses, or properties. Subregisters or domain-specific databases feed data to the hovedregistrer, while operations and reporting pull from it to guarantee consistency and reduce duplication across the system landscape.

Key characteristics of a hovedregistrer include a unique key for each entity, formal data governance, and mechanisms for data quality, deduplication, and change management. Data owners and data stewards supervise the data domain, and metadata management documents source, lineage, and quality metrics. Interoperability is achieved through standard data models and interface contracts, enabling other systems to synchronize with the hovedregistrer via APIs or batch processes. The concept is closely aligned with master data management (MDM) practices and is intended to provide a single, trusted view of critical entities.

Implementation typically involves establishing a clear governance framework, defined ownership, and robust processes for data ingestion, cleansing, matching, and synchronization. Privacy and data protection considerations are central, including access controls, consent management where applicable, and audit trails to ensure accountability. Effective use of a hovedregistrer can improve data quality, support accurate reporting, and enable more efficient operations across public and private sector organizations.