1 The Geo Information & Media Technology Research Group, The Technical Faculty of IT and Design, Aalborg University, VBN2 Department of Development and Planning, The Technical Faculty of IT and Design, Aalborg University, VBN3 The Division of Geomatics, The Technical Faculty of IT and Design, Aalborg University, VBN4 Land Management & Geoinformatics, The Technical Faculty of IT and Design, Aalborg University, VBN5 National Survey and Cadastre
Models, Mutual Dependencies and Definitions
The purpose of geo-communication is to bridge the gap between reality and data sources on one side and a reasonably basis for decision-making on the other side. This is achieved through sev-eral types of activities, where web-services and spatial data infrastructure (SDI) as well as knowl-edge of communication-theories play important roles. The introduction of web-services as index-portals based on geo-information has changed the conditions for both content and form of geo-communication. A high number of players and interactions as well as a very high number of all kinds of information and combinations of these characterize geo-communication carried out through web-services. This paper discusses the nature of geo-communication put into relation to the different com-ponents of SDI, as well as the impacts thereof. Awareness of the complexity is necessary, and structure is needed to make it possible to handle the increasing complexity. Modern web-based geo-communication and its infrastructure looks very complex, and it will get even more complex! Therefore there is a strong need for theories and models that can de-scribe this complex web in the SDI in the perspective of modern geo-communication.