Wittmann, JochenPage, BerndFleischer, Andreas G.Göbel, JohannesWohlgemuth, Volker2019-09-162019-09-162013https://dl.gi.de/handle/20.500.12116/25924By the growing use of geographic information systems (GIS) the use of cellular approaches for modelling and simulation spatial and especially geographical processes and systems gains more and more importance. This paper gives an overview over the basic definitions and emphasizes a proper differentiation between the very tight definition of real cellular automata and the very universal one for cellular systems. On the base of these definitions typical problems are discussed, which raise for modelling spatial objects given by raster or vector data and by representing spatial relationships between these objects. Furthermore the difference in semantics between neighbourhood relation in GIS and neighbourhood relations needed for modelling purposes are elaborated.Text/Conference Paper