ACCA Strategic Professional · Strategic Business Leader · Big data and data analytics
Mirabel Foods, a supermarket chain, combines loyalty-card purchases, in-store sensor footfall data and local weather feeds. Management uses the combined data to predict demand for each store and adjust deliveries daily. Which characteristic of big data is MOST directly demonstrated by the continuous, rapid arrival of sensor and weather feeds that must be processed quickly enough to act on?
The answer is velocity. Velocity describes the speed at which data is created and must be processed. Continuous sensor and weather feeds that support daily delivery adjustments illustrate this, whereas volume concerns scale, veracity concerns data quality, and value concerns the usefulness of insights.
- AVolume
- BVelocityCorrect
- CVeracity
- DValue
Explanation
Velocity refers to the speed at which data is generated and must be processed. Sensor and weather feeds arrive continuously and daily delivery decisions depend on quick processing. Volume concerns the sheer quantity of data, which is not the feature being highlighted here.
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