Data lineage in telemetry systems refers to what?

• A. The ability to trace data origin and its transformations through to its use.
• B. The color coding of dashboards.
• C. The device battery life.
• D. The number of users accessing data.

Answer: (A)

Data lineage is about following data from its origin through every processing step to its final use. In telemetry systems, data starts at devices, moves through ingestion, cleaning, transformations, and possible aggregation, and then is stored or fed into dashboards and analytics. Understanding this path helps you verify data quality, attribute changes to specific steps, and assess the impact of any modifications to the processing pipeline. It’s essential for debugging: if a sensor reading seems off, lineage lets you trace back to the raw value, the timestamp alignment, filters applied, and the aggregation logic to identify where the issue arose. It also supports governance and compliance by showing how data has been transformed and who or what altered it. The other options describe visualization color schemes, device battery considerations, or user access counts, none of which capture the tracing and transformation journey of the data itself.