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Table 1 Interoperability solutions involving OPC UA and IoT domain

From: Interoperability between OPC UA and oneM2M

Protocol Description of the interoperability solution Reference
DPWS Several solutions for achieving interoperability between OPC UA and DPWS exist [26] [27] [28]
REST Solutions aimed to modify OPC UA binary protocol, making it more RESTful, and more friendly to resource-constrained devices. [29, 30]
CoAP Solution to make interoperable OPC UA and CoAP exixts [31, 32]
HTTP A proposal for an OPC UA translator between OPC UA and HTTP exists [32]
MQTT A proposal for an OPC UA translator between OPC UA and MQTT exists [32]
oneM2M Interoperability approaches between OPC UA and oneM2M standard exist, but they only deal with the interoperability from OPC UA towards oneM2M; exchange of information in the opposite direction is not considered at all. [33, 34]