Connectivity Framework
8 : Core Connectivity Standards
communication on many IIoT devices , but those devices generally use other mechanisms for the operational communication . For more details on the applicability of HTTP see the detailed assessment template mapping in Annex D .
OPC-UA is managed by the OPC Foundation , and has a standard mapping to web services . A standard gateway mapping of OPC-UA and DDS is under development at the OMG , a standard mapping of OPC-UA on top of DDS is under way at the OPC Foundation , and a oneM2M mapping is under development at oneM2M . OPC-UA is being deployed across manufacturing . This last requirement is not quite met . The precursor technology (“ Classic OPC ”) is certainly widespread . Because of that we consider the risk of OPC-UA deployment to be low enough in manufacturing to qualify . Other related industries are beginning to deploy OPC-UA as well , so its applicability will likely expand in the future . OPC-UA is suitable for the operation and application domains . For more details on the applicability of OPC-UA see the detailed assessment template mapping in Annex B .
oneM2M is managed by a partnership of regional international standards organizations to include : ARIB , ATIS , CCSA , ETSI , TIA , TSDSI , TTA , TTC , uses a RESTful style architecture with transport bindings for HTTP and Web Sockets and is scheduled to have established standard mappings to DDS and OPC-UA in the next release , and has been recently deployed across multiple industries . As the standard is quite new ( released 2015 ), deployments are also new and less than what one might require for it to be considered stable and proven across multiple industries . For more details on the applicability of oneM2M see the detailed assessment template mapping in Annex C .
Considering the current state-of-the-art , the criteria for IIoT connectivity core standards , the practicality of maintaining a minimal set of core standards that support many connectivity technologies , and the need to provide effective guidance ; the following emerge as potential IIoT connectivity core standards : DDS , OPC-UA , Web-Services , and oneM2M . These standards span aspects of IIoT systems , as shown in Table 8-2 . The set of potential connectivity core standards may expand in the future as other applicable standards mature to meet the criteria and address IIoT system aspects . Table 8-2 shows examples of some applications where these standards are often applied .
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