The service is part of the Spatial Information Services Stack (SISS) devoted to promoting interoperability among mapping information systems, including implementations by Australian government agencies. This function establishes an interface for integrating descriptive vocabularies to standardize terminology use, primarily via machine-to-machine sharing of HTTP links representing terms. A human interface is also provided, but that function is secondary to API-based exchanges of data.
API methods support submission of queries for geospatial terms to the service, which returns standard versions and variants matching the request. Methods indicate semantic equivalence or other relationships between terms managed within the vocabulary.