http://opengeospatial.org/standards/wps
KVP - Key-Value-Pairs, Standard CGI-Interface. Benutzt wird HTTP-GET:
key1=value1&key2=value2&key3=value3&...
XML wird über HTTP-POST benutzt. Komplizierter, aber mehr flexibel.
Mehr detaillierte Prozessbeschreibung * Inputs * Outputs
http://foo/wps?service=WPS&version=1.0.0&request=DescribeProcess&identifier= buffer
Prozess Aufruf
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<wps:Execute service="WPS" version="1.0.0" xmlns:wps="http://www.opengis.net/wps/1.0.0" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wps/1.0.0/wpsExecute_request.xsd">
<ows:Identifier>buffer</ows:Identifier>
<wps:DataInputs>
<wps:Input>
<ows:Identifier>data</ows:Identifier>
<ows:Title>Input</ows:Title>
<wps:Reference xlink:href="http://localhost/temp/gml.xml"/>
</wps:Input>
<wps:Input>
<ows:Identifier>width</ows:Identifier>
<ows:Title>buffer width</ows:Title>
<wps:Data>
<wps:LiteralData>0.5</wps:LiteralData>
</wps:Data>
</wps:Input>
</wps:DataInputs>
<wps:ResponseForm>
<wps:ResponseDocument wps:storeExecuteResponse="true" wps:status="false">
<wps:Output wps:asReference="true">
<ows:Identifier>buffer</ows:Identifier>
</wps:Output>
</wps:ResponseDocument>
</wps:ResponseForm>
</wps:Execute>
Eine Textangabe
<wps:LiteralData>0.5</wps:LiteralData>
<wps:LiteralData>Hallo, Welt!</wps:LiteralData>
<wps:BoundingBoxData ows:dimensions="2" ows:crs="epsg:4326">
<ows:LowerCorner>X Y [Z]</ows:LowerCorner>
<ows:UpperCorner>X Y [Z]</ows:UpperCorner>
</wps:BoundingBoxData>
Vektor- oder Rasterdaten
<wps:ComplexData>
<wps:Reference xlink:href="http://localhost/temp/gml.xml"/>
</wps:ComplexData>
oder:
<wps:ComplexData>
<ogr:FeatureCollection xmlns:ogr="http://ogr.maptools.org/" xmlns:gml="http://www.opengis.net/gml">
<gml:boundedBy>
<gml:Box>
<gml:coord><gml:X>-559044.5280103994</gml:X><gml:Y>-1177026.734255324</gml:Y></gml:coord>
<gml:coord><gml:X>-554835.891394174</gml:X><gml:Y>-1169621.932698363</gml:Y></gml:coord>
</gml:Box>
</gml:boundedBy>
<gml:featureMember>
<ogr:features fid="F0">
<ogr:geometryProperty><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>-555043.324615493183956,-1174010.838661683257669 -554930.435787564259954,-1174159.005248340079561 -555085.657925966545008,-1174293.060731505509466 -555276.157823096611537,-1174201.338558813324198 -555191.491202149889432,-1174088.449730884516612 -555043.324615493183956,-1174010.838661683257669</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></ogr:geometr
...
</wps:ComplexData>