GI scientists try to solve problems with a geographical component. To find answers to these sort of problems, GI scientists have to simplify the real world - mostly because this real world is too complex. For a simplified representation of the world, GI scientists turn to models. A model is a simplified representation of reality.
In this Learning Path we will focus on ways to classify geographic phenomena in order to model these phenomena as data in a GIS.
A geographic object differs from a field in that it is not necessarily present everywhere in the study area.
It depends on the map scale how fields and objects are represented in the map. On smaller scales they are more generalized.