What are the data delivery speed requirements: real-time or batch?

The choice between real-time and batch data processing depends on the requirements for speed of delivery and the nature of the task:

• Real-time (stream processing) is suitable when quick response to events is needed, such as in monitoring systems, recommendations, or fraud detection. Data is processed as it arrives with minimal delay.

• Batch (batch processing) is used when data can be processed periodically in large volumes, such as for reporting or training models on historical data. It saves resources and simplifies processing.

The choice depends on business requirements and system architecture.