placereal

Placereal is a term used in geographic information science to denote an enriched representation of real-world places that combines precise geographic coordinates with authoritative identifiers and provenance data. It aims to provide unambiguous reference to locations across diverse datasets by linking place references to stable identifiers and by recording the sources and time periods during which the data are valid. The concept emphasizes interoperability and traceability in location data.

A typical placereal data model includes fields such as id, name, latitude, longitude, type (for example city, building, park), alternative names, a gazetteer identifier or URI, source metadata, validity period, and a confidence score. It is designed to work with standard encodings and systems, supporting formats like GeoJSON for geometry and RDF or JSON-LD for linked data, while connecting to established gazetteers such as GeoNames or Wikidata through stable identifiers.

Placereal is used in applications ranging from digital humanities projects that map historical places to cultural heritage catalogs, urban planning databases, and travel or tourism platforms that require precise, multilingual place references. By capturing provenance and change history, placereal supports data quality assessment, reproducibility, and long-term data integration across domains.

Limitations include reliance on external authority datasets, potential inconsistencies between gazetteers, and the ongoing need to maintain up-to-date coordinates for dynamic locations. Implementations typically document data sources, update schedules, and confidence levels to support transparency and reuse.

See also gazetteer, geocoding, linked data, GeoJSON, Wikidata, GeoNames.