Eloranta, KirsiD.S. Greenaway and E.A. Warman2015-09-292015-09-2919821017-4656https://doi.org/10.2312/eg.19821011In this paper we deal with graphical representation of spatially referenced information. We introduce an approach to geometric representation based on the Entity-Attribute-Relationship (EAR)-model. Our object system is an urban municipality, especially the urban activities which create or utilize land related information. Among those activities we can distinguish certain sequence of information transformations. In this paper we try to describe the various representations of urban land information and the functional connections between then. The purpose of these descriptions is to define the requirements of geodata base structures derived from the semantic contents of information.10.2312/eg.19821011