Backpressure is a flow-control mechanism in streaming data systems that slows producers when consumers cannot keep up, preventing overload and data loss.
A bar chart is a data visualization that compares values across categories using rectangular bars whose length is proportional to each value.
Batch processing runs data jobs over a bounded collection of records at scheduled intervals, favoring throughput and repeatability over low latency.
Business intelligence is the set of processes, data models and tools that turn organizational data into reports, dashboards and decision support.