This is a list of useful references and resources in the IoT environment.
- Standardization Bodies
- IoT Protocol Specifications
If the accompanying meta post will validate the usefulness of this question, I'll ask the SE staff to make it CW.
I would add to the list OPC/UA
The OPC Unified Architecture (UA), released in 2008, is a platform independent service-oriented architecture that integrates all the functionality of the individual OPC Classic specifications into one extensible framework.
3GPP—the 3rd Generation Partnership Project. The project covers cellular telecommunications network technologies, including radio access, the core transport network, and service capabilities - including work on codecs, security, quality of service - and thus provides complete system specifications. Interesting standards regarding IoT are LTE and UMTS.
IEEE IoT Initiative
The Internet of Things Initiative of the Institute of Electrical and Electronics Engineers—one of largest standardization organizations of the world. One example in the IoT domain is IEEE 802.15.4
ITU-T—the telecommunication standardization sector of the International Telecommunication Union. Another entity that sets international standards and recommendations like the ITU-T Y.2060 "Overview of the Internet of Things". The Internet of Things is currently covered by the Study Group 20.
Object Management Group, an international, open membership, not-for-profit technology standards consortium, which also provides standardization in the IoT and IIoT domain.