Since the adoption of laws on spatial information infrastructure from the transposition of the INSPIRE Directive, interest in conceptual modeling and UML has increased significantly. The transposition is the adaptation of INSPIRE directives to national law, which requires many changes in regulations regarding geodesy and cartography law and related laws. An integral part of the regulations developed by the Head Office of Geodesy and Cartography are specifications for conceptual modeling, including among other things, UML application schemes. UML, unified modeling language, is a standard code for describing physical locations in spatial analysis and design. It is also the norm for the modeling of geographic information recommended by the ISO 19100 series of International Standards. UML makes it possible to register geographic information, independent of the software-hardware platform, in a way that ensures compatibility between different geographic information systems and allows for successful data transferring. Examples taken from the regulations on geodesy and cartography laws, as published on the Head Office of Geodesy and Cartography website, were used to explain the fundamentals of spatial modeling, UML notation, and rules for creating application schemes. The authors also suggest that the sudden interest in UML could be called “UML-ology”.

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