Communication protocols
SAREF4ENVI, SAREF4WEAR, SAREF4LIFT, SAREF4WATR, all define some kind of communication protocols and interfaces.
Only SAREF4LIFT uses the patterns from SAREF4SYST for describing communication protocols. See Figure 18 at https://saref.etsi.org/saref4lift/v1.1.1/
SAREF4EHAW defines s4ehaw:CommunicationProtocol
SAREF4ENVI defines s4envi:usesCommunicationInterface and s4envi:usesCommmunicationProtocol, and s4envi:System, which from its definition read more like a CommunicatingSystem
DP s4watr:operatesAtRadioFrequency would best be applied to some ontology of communication protocols. Other extensions SAREF4LIFT, SAREF4EHAW, SAREF4WEAR, do define communication interfaces and protocols. Some harmonization would be required.
Edited by Maxime Lefrançois