Identifikatormapping
Identifikatormapping is the process of linking identifiers used by different information systems that refer to the same real-world entity. It enables data integration, search, and analysis across datasets that employ distinct identifier schemes. Mappings can be one-to-one, one-to-many, or many-to-one, depending on the level of granularity and the relationships defined by domain conventions. They are typically stored in cross-reference tables or managed by identifier registries and mapping services.
Methods for creating and maintaining mappings include manual curation, rule-based approaches, automated matching using string similarity
Common sources span multiple domains. In biology, mappings frequently connect identifiers from Ensembl, NCBI Entrez Gene,
Quality and governance are central concerns. Mapping quality depends on accuracy, coverage, update frequency, and traceable
Applications include data integration, knowledge-graph construction, data cleaning, and reproducible research, where reliable identifier mappings support