1.3.1. Points-of-Interest

Types of POI

Users of location-based services need to be able to tap into diverse sources of data and visualise these dynamically with maps. In the previous unit, we described this type of information as 'foreground'. The most common type of foreground geographic information are items of data that have been associated with points. Such data are often described as "Points-of-Interest" or POIs. This term highlights the main cartographic aspects of the information, i.e. as points containing special purpose information, but hides the differences amongst the various sorts of POIs. We can distinguish a number of types of POI relevant to LBS