I. Introduction
Digitalization is progressing fast and changes products, companies, business models, and competition. Technical products no longer consist only of physical parts but also of sensors, microprocessors and additional parts for the connectivity [1]. Studies indicate that the number of connected products will vastly increase in the future [2]. The rise of connected products is one reason for the large amount of available data worldwide, often referred to as Big Data [3]. The term Big Data comprises not only data, but also analytical methods (data analytics), processes and technologies [4]. Five characteristics describe Big Data: volume, variety, veracity, velocity, and value [5].