Developing a modelling for the spatial data infrastructure

ABSTRACT Theme : Spatial Data Infrastructure, Spatial Data, Analytical Cartography, Spatial Theory The Commission on Spatial Data Standards of the International Cartographic Association (ICA) is working on defining spatial models and technical characteristics of a Spatial Data Infrastructure (SDI). To date, this work has been restricted to the Enterprise and Information Viewpoints from the ISO Open Distributed Processing standard. The Commission has developed models for these two viewpoints. The models describe how these two different parts of an SDI fit together in the viewpoints in question. The models cannot be seen as a final result, but more as a small step towards a model that defines the previously mentioned overall model of the SDI and its technical characteristics. During the model development process, the role of the different actors in an SDI have also been identified in Use Case diagrams of an SDI. The model is developed using the Unified Modelling Language (UML). 1. INTRODUCTION