Big data

Big data refers to the large volumes of historically unstructured information held by organisations.

Big data technology interrogates this previously unstructured information to produce more useful summarised and selected data and analysis.

For example, anti-fraud technology in banks can analyse how often bank customers log into their account, where they usually log in from, and how quickly they type in their user name and password.

This process is also known as data mining, or knowledge discovery in data.

See also

• Data
• Data lake
• Data mining
• Data science
• Database
• Datasphere
• General Data Protection Regulation
• Granular
• Operational risk