includes medical data and findings as well as voting decisions. Anonymisation involves either deleting the personal data or falsifying it in such a way that no conclusions can be drawn about the original information. Anonymisation is described in the Federal Data Protection Act (BDSG). According to this, anonymisation is "the alteration of personal data in such a way that the individual details about personal or factual circumstances can no longer be attributed to a specific or identifiable natural person or can only be attributed to a specific or identifiable natural person with a disproportionate amount of time
, cost and effort."name
. The person remains anonymous. Even if the remaining information in a table retains its full significance and can be used for statistical surveys or cost estimates, there is no way to assign the data to individuals. Data alteration can occur not only through anonymization, but also through pseudonymization.