The functionality of GIS

Abstract

This chapter aims to provide a basic introduction to the generic functionality of GIS. In the context of this book, it is something of a link chapter which draws together many concepts discussed briefly elsewhere, although a number of new concepts are introduced. Functionality is defined as all the data collection, storage, manipulation, analysis and presentation operations carried out by GIS. This chapter is arranged in five sections. The first two introduce the ideas of geographical data models, data structures and geographical features which are central elements of the discussion. The third section is the most substantial and describes the generic functionality of GIS. The relationship between functionality and application is examined in the next section using four different application areas. Finally, some conclusions are drawn about the current status of GIS functionality. -Author