Differentiate between MQTT and DDS protocols.

Question :

Differentiate between MQTT and DDS protocols.

MQTT is optimized for centralized data collection and analysis-connecting sensors and mobile devices to applications running in a data center. All communication routes through this centralized broker.
DDS is optimized for distributed processing-directly connecting sensors, devices and applications to each other without any dependence on centralized IT infrastructure.
DDS is decentralized.