T-11: Standardized Geoprocessing with 52°North Open Source Software
The Open Source Software Initiative 52°North provides services and applications that enable standardized and distributed geoprocessing on the web. An open standard based – e.g. an Open Geospatial Consortium (OGC) based - SDI mostly supports the retrieval and visualization of data through web services. Data processing is usually performed by humans with more or less proprietary and monolithic Geo Information Systems (GIS). With growing network capacity and processing power, it became feasible to integrate stand-alone geoprocessing applications and their expert functionality into a web service environment and therefore enable web services to execute geoprocessing tasks. The OGC Web Processing Service (WPS) is a major attempt to address this issue in a standardized way. The WPS interface specification defines a standardized way to publish and perform geospatial processes over the web and therefore fosters interoperability. Such a process can range from a simple geometric calculation (e.g. a simple intersect operation) to a complex simulation processes.
After a brief introduction to the basic concepts of standardized geoprocessing, the participants will set up a scenario installation of the different 52°North geoprocessing components. With the help of these free components, a common geoprocessing problem will be solved.
The workshop attendees might hand in one of their example data sets or processes to the workshop organizer in advance. The workshop organizer will choose one of the processes and datasets and apply them during the workshop.
Setting up the scenario implies:
download the 52°North WPS
install and configure the 52°North WPS
create your own simple WPS process
utilize existing GIS functionality in the WPS (e.g. SEXTANTE)
execute the created sprocess in different WPS clients (OpenLayers and Udig)
After successful execution of the processes in uDig, it will be explained how to export the process results to GoogleEarth.