2 views of change analysis

Change analysis is an approach to analyse changes occuring throught time. For a set of spatial features change analysis can focus on their thematic changes (non-spatial) or on their geometric changes. Time changes can be analysed either non spatially or spatially:

• Non spatial: the aim of the analysis is focused toward property change of phenomena. This type of analysis concentrates on the thematic dimension of information.
• Spatial: this more complex analysis investigates not only property change of phenomena, but also their distribution throughout space. This allows to analyse spatial dynamics.