Big Data in Context

Big data is closely linked to the new, old question of data quality. Whoever pursues a new research perspective such as big data and wants to zero out irrelevant data is confronted with questions of data quality. Therefore, the European General Data Protection Regulation (GDPR) requires data processors to meet data quality standards; in case of non-compliance, severe penalties can be imposed. But what does data quality actually mean? And how does the quality requirement fit into the dogmatic systems of civil and data protection law?