TABLE OF CONTENTS Lars Brodersen, Aalborg University, Denmark
Anders Nielsen, National Survey and Cadastre, Denmark
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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 characterise Web services, where maps are only apart of the whole. This chapter discusses the relations between the different components of SDI and geo-communication as well as the impact thereof. Discussed is also a model for the organization of the passive components of the infrastructure; that is, legislation, collaboration, standards, models, specifications, Web services, and finally the information. Awareness of the complexity is necessary, and structure is needed to make it possible for the geo-information community to pull together in the same direction. 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 describe this complex Web in the SDI and geo-communication consisting of active components, passive components, users, and information in order to make it possible to handle the complexity and to give the necessary framework
The major concern of this chapter is the requirements driven or user driven development of SDI and geo-communication. Most GIS-, cartography-...
