Big Data is a phenomenon that is attracting ever greater attention in the course of digitalisation. This is because, with the advancement of digital technology, the amount of digital data that can no longer be evaluated with conventional methods is growing. Big Data is a collective term for the large amounts of data that can come from sources such as websites and social media, but also from surveillance cameras, household appliances (see SMART HOME), and aircraft and vehicles. Here’s an example: Google alone received some 2,834,650,000,000 (2,834.65 billion) search queries in 2015. Big Data refers to these huge quantities of data as they are processed.