The WS Light Interface Binding as detailed in the EUROCONTROL Specification for SWIM Technical Infrastructure Yellow Profile, edition 2.0.
Reference
EUROCONTROL-SPEC-170 - EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow
https://www.eurocontrol.int/sites/default/files/2025-07/eurocontrol-spec-swim-tiyp-ed-2-0.pdf