DOMAIN-INDEPENDENT DATA REPRESENTATION USING ATOMS, DOCUMENTS AND CONNECTIONS

摘要

Techniques for storing geographic information system (GIS) data in a domain-independent representation. The techniques can include storing GIS data in a GIS atomic units, each including a globally unique identifier and a state including a GIS feature. The techniques can include storing non-GIS atomic units each including at least one document and at least one connection, where each document of non-GIS atomic units includes a globally unique identifier and a version identifier, where each connection of the non-GIS atomic units is directed from its parent non-GIS atomic unit to a child atomic unit, is non-reflexive, and comprises a parent globally unique identifier, a child globally unique identifier, a relation identification, and version applicability information. The techniques may persist, unless subjected to garbage collection, an initial version and all subsequent versions of each document of each of the first plurality of non-GIS atomic units.