Below are some examples to explain services usage by using HTTP/GET and KVP encoding.

Basic WPS Requests
Request Description
GetCapabilities

Retrieve capabilities information

^ up
WPS 0.4.0 GetCapabilities

Retrieve capabilities information by using the URL
${default.online.resource}?REQUEST=GetCapabilities&version=0.4.0&service=WPS

DescribeProcess

Describes defined processes

^ up
WPS 0.4.0 DescribeProcess Buffer A DescribeProcess request, which describes the Buffer process:

.../services
service=WPS
version=0.4.0
request=DescribeProcess
Identifier=Buffer