The extension Spatial Analyst makes it possible to carry out treatments and analyses on raster dataset, increasing largely the power of ArcView GIS in the planning and the decision-making. However, the standards functions available thrue the menus Analysis and Surface are limited.

GSF Grid adds a multitude of functionalities thus making it possible to exploit the maximum power of Spatial Analyst. Those relates to georeferencing image, the creation and the planning of and realisation of advanced viewshed analysis, the management and conversion of raster dataset conversion.