Web Geoprocessing Workflows

The rapid evolution from monolithic desktop geographic information system (GIS) applications with tightly coupled geodata to spatial data infrastructures (SDIs) with independent, interoperable, and distributed Web services has changed the GIS world fundamentally. Nevertheless, the existing SDIs are focused on data retrieval and visualization. To generate information out of data, it becomes necessary to process the data. However, the complexity of spatial data often requires the functionality of several geoprocesses and has led to Web-based geoprocessing workflows. The Web-based geoprocessing workflows can be viewed as a combination of two fundamental concepts: geoprocessing and workflow in a service-oriented and Web-based context.


In the absence of a general definition, the term geoprocessing can be seen as a specialization of the term processing in a spatial context. In other ...

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