🟣 Terminology: Batch vs Streaming Processing

Batch: Process accumulated data at scheduled intervals. - When: reports, model training, ETL jobs - Tools: Spark, Hadoop, Airflow - Latency: minutes to hours

Streaming: Process data in real-time as it arrives. - When: fraud detection, live dashboards, recommendation updates - Tools: Kafka, Flink, Spark Streaming - Latency: milliseconds to seconds