Interoperability and definition of a national standard for geospatial data: the case of the Hellenic CadastreInteroperability and definition of a national standard for geospatial data: the case of the Hellenic Cadastre Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-10-232000enThis study, evaluation and proposal of a standard suitable for the exchange of geographic data was conducted by the National Technical University of Athens as part of a research project on behalf of KTIMATOLOGIO S.A. and the Hellenic Mapping and Cadastral Organization. The primary application interest was the Hellenic Cadastre Project, which can be seen as a case-study of the role of standards, the functionality they provide, and their effects. The study reported relates mainly to theoretical and scientific issues of standardization. Several subjects were addressed during the process of selecting the standard and a series of evaluation criteria were formed. Three primary trends in standardization were considered, Open GIS, ISO/TC 211 and CEN/TC 287, and a generic-profile-product approach was pursued. The selected standard was DIGEST-C with a customized (and not modified) implementation version of an Urban VMap product. The customization process included the association of the schema available in the selected standard with the schema that have been used so far in Greece for cadastre applications. The utilization and implementation of the selected standard, intended to be a National Spatial Data Exchange Standard, has various implications, which are reported and evaluated.http://creativecommons.org/licenses/by/4.0/International Journal of Applied Earth Observation and Geoinformation22120–128 Zervakis Michail Ζερβακης Μιχαηλ Kavouras, Marinos Halaris, Georges Panopoulos, Georgios Hatzilakos, Athanasios Sellis, Timos Kokla, Margarita Tsoulos Lysandros Τσούλος Λύσανδρος Παρασχάκης Ιωάννης Paraschakis Ioannis Elsevier Interoperability Geographic Information Exchange Standardization DIGEST-C