||Method has been identified as a key component in the application of geographical
information. One reason why we consider method of great importance is that
the purchase and implementation of a GIS is usually a business decision
that has to be justified in terms of efficiency and effectiveness. Whilst
many make the case for this investment on the grounds of more efficient
data management it is primarily through spatial analysis that an organisation
improves its' effectiveness - by solving problems and making better decisions.
If we then consider how data visualisations can be a powerful feature when
making decisions and note that GIS software vendors have invested heavily
in visualisation functions then it is apparent that these are methods that
the GI professional needs to master.
Method is not simple and much effort is spent on the design of good methods.
Method in GIS revolves around four issues:
- the process of spatial data modelling,
- procedures for storing spatial data
- media for visualising spatial data, and
- the application of techniques for spatial query and analysis