Building GIS Models I*

In GIS, a model is a workflow that automates a sequence of geoprocessing tasks to solve a spatial problem or analyze geographic data. Models are typically created using visual interfaces, like the Model Builder in QGIS or ArcGIS, where users drag and connect geoprocessing tools and input/output data layers. To build a model, you define the input datasets, select the tools for analysis (e.g. buffer, overlay, raster calculation) and configure their parameters, linking them in a logical sequence. Models are invaluable for streamlining repetitive tasks, ensuring consistency in analysis and enabling non-technical users to run complex workflows without manual intervention. They also make workflows more transparent, easy to share and reproducible.

• Introduction to model building in GIS
• Model Designer in QGIS
• Creating basic models