To identify the layer or store for a WFS, WMS, or WCS web service so the application can construct the full web service link
Entry Guidelines
Only the layer name is added here. The base service endpoint URLs (e.g. “https://maps-public.geo.nyu.edu/geoserver/sdr/wms”) are added to the References field.
Commentary
The WxS Indentifer is used to point to specific layers within an OGC geospatial web service. This field is not used for ArcGIS Rest Services.