Connectivity Framework
7 : Connectivity Standards
level as well as between the factory-floor and the enterprise IT cloud . There are explorations of use outside of manufacturing , although no deployed implementations .
For more details , and to determine the suitability of OPC-UA for a specific set of system requirements , please refer to the assessment template ( see chapter 6 ) in Annex B .
7.1.4 ONEM2M
oneM2M is a relatively new standard ( 2015 ) managed by a partnership of regional international standards industry organizations in the telecommunications industry .
oneM2M provides a common service layer that sits between applications and connectivity transport . It offers functions that IoT applications across different industry segments commonly need . Those functions are exposed to applications via RESTful APIs .
oneM2M standards comprise a horizontal platform architecture that fits within a three-layer model comprising of applications , middleware services and networks . oneM2M ' s connectivity standards permit applications that are hosted on connected machines and devices , enterprise systems and mobile devices to communicate with each other in an efficient , secure manner . The oneM2M horizontal platform is scalable as the common service elements are able to be deployed on hosts , at the proximal network edge or within the enterprise cloud .
Connectivity services provide capabilities that allow for efficient communication between application endpoints . It provides interworking mechanisms that adjust the underlying network ( e . g ., mobile , wireless ) quality of service to meet the needs of current application data exchange . Currently , the oneM2M service layer can use HTTP , CoAP , MQTT and WebSockets for connectivity transports . DDS is being explored as another option for providing real-time connectivity between the oneM2M service layer entities . Also , an interworking gateway between oneM2M and DDS and OPC-UA is under investigation .
Typical usage of oneM2M includes registration and subscription of devices and applications , service charging and accounting , management of application and devices , and monitoring .
oneM2M has commercial deployments in home-automation applications . It is suitable for largescale consumer IoT applications . oneM2M is also actively engaged in deployments in other IIoT application domains , including telematics and intelligent transportation , home automation , utilities , healthcare , smart cities , and industrial automation . In all these domains , oneM2M provides semantic enablers ( in the scope of the Distributed Data Interoperability and Management layer ). As a key part of the telecommunication industry ’ s existing initiatives and its new “ 5G ” initiative , oneM2M provides enablers that focus on the connection between device and the cellular network .
To date , the real-time data distribution performance , latency , jitter benchmarks of oneM2M deployments have not been documented and made publicly available .
For more details , and to determine the suitability of oneM2M for a specific set of system requirements , please refer to the assessment template ( see chapter 6 ) in Annex C .
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