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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]