Streaming Data refers to data that is continuously generated by different sources and sent in a stream of messages to be processed incrementally. This type of data is often time-sensitive and requires real-time or near-real-time processing to extract valuable insights. Streaming data sources can include social media feeds, sensor data, log files, and financial transactions. Processing streaming data involves capturing, analyzing, and acting on data in motion, enabling applications like real-time analytics, monitoring, and event-driven architectures.