The first version of this thesaurus was prepared based on terms and term relationships derived from ISO/DIS Land Administration Domain Model (LADM) (dated 2010-03-01; later approved as ISO 19152:2012 LADM). Moreover, terms were adopted from other thesauri, including the AGROVOC multilingual agricultural vocabulary, the GEMET Thesaurus, INSPIRE Spatial Data Themes, and the STW Thesaurus for Economics. Version 3 was supplemented with terms from OGC Land and Infrastructure Conceptual Model Standard (LandInfra), and the present version 4 includes code lists from LandInfra, as well as a few from LADM. The code lists are recorded in a distinct concept scheme, but the code list values refer to CaLAThe thesaurus terms when possible in a meaningful way.
The concepts and concept hierarchies of CaLAThe may be queried at http://www.cadastralvocabulary.org or by means of the SKOS Play facility at http://labs.sparna.fr/skos-play/ .