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

Kestrel Retail plc collects point-of-sale transactions, website click streams, social media comments and supplier sensor readings. The finance director says the data is too large, arrives too quickly and is in too many formats for the existing data warehouse. Which set of characteristics of big data does she describe?

The finance director is describing volume, velocity and variety. The data is very large, arrives rapidly and comes in structured and unstructured formats. These are the core big data characteristics, unlike data quality attributes such as accuracy or timeliness.

  1. AVolume, velocity and varietyCorrect
  2. BValidity, volatility and value only
  3. CReliability, relevance and timeliness
  4. DAccuracy, completeness and consistency

Explanation

Large size is volume, speed of arrival is velocity, and mixed formats (structured and unstructured) is variety. The other options list data quality attributes or only some of the later extended Vs, so they do not match the three features described.

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