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ACCA Strategic Professional · Advanced Performance Management · Technology and information systems

Kestrel Retail plc collects millions of daily till transactions, website click streams, social media comments and loyalty-card records. Management says the data set is difficult to handle with its traditional database because of its sheer size, the speed at which it arrives and the mix of structured and unstructured formats. Which characteristics of big data are being described?

The characteristics described are volume, velocity and variety. Volume is the sheer quantity of data, velocity is the speed at which it is generated and must be processed, and variety is the mix of structured and unstructured formats such as transactions, clicks and comments.

  1. AVolume, velocity and varietyCorrect
  2. BValidity, volatility and visualisation
  3. CValue, veracity and verification
  4. DVariance, vulnerability and viability

Explanation

The commonly cited three Vs of big data are volume (size), velocity (speed of generation) and variety (mixed formats). The scenario mentions size, speed of arrival and structured/unstructured mix, which map exactly to these. The other options contain terms that are not the core descriptors of the scenario.

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