Open Messaging Interface (O-MI), The Open Group Standard for the Internet of Things (IoT), Version 2.0

The Open Messaging Interface (O-MI) standard connectivity model is similar to that of the World-Wide Web (WWW). Where the WWW uses the HTTP protocol for transmitting HTML-coded information mainly intended for human users, O-MI requests are used for transmitting lifecycle-related information mainly intended for automated processing by information systems. A defining characteristic of the O-MI standard is that O-MI nodes do not have predefined roles, as it follows a “peer-to-peer” communications model.