MQTT is a machine-to-machine (M2M) and Internet of Things (IoT) open protocol standardized by the OASIS Technical Committee (www.oasis-open.org). The protocol is easy to adopt for a wide variety of IoT devices, platforms, and operating systems. Enterprise cloud platforms such as Microsoft Azure expose their IoT PaaS through MQTT.
Find out more about the core concepts of MQTT that are necessary for building M2M and IoT applications on Schneider Electric Blog. The article covers the basic terminology, along with a section on integrating the MQTT with IoTView HMI.