The paper gives a strategy of geographic information modelling, being comprised in the European Standards (as formulated by the CENffC 287) and also subjected to national standardisation. Main goals of the standardisation are formulated, which include proper arrangement of this domain, as well as formation of prerequisites for reasonabel development of GIS in diversified environments. The last one is necessary to provide effective transfer of geographic data between different GIS installations. There are formulated and defined basic concepts of information modelling, such as conceptual schema, application schema, entity - relationship method, as well as of the EXPRESS language, being the main formal means of the presented methodology. The present state of the national standardisation activities is outlined.