Geoprocessing workflow capability for Web Processing Services.
The geo-model builds the respective based upon the model's input. The model's workflow determines the WPS 'subprocess' chaining capabilities.
FLASH - Built on FlashBuilder 4.5+. This is an intermediate solution until a JavaScript solution is implemented.
JAVASCRIPT - Built on jsPlumb 1.3.4+ http://jsplumb.org/jquery/draggableConnectorsDemo.html and OpenLayers 2.12+ http://openlayers.org/dev/examples/wps.html (OpenLayers WPSExecute.js).