A Smart Manufacturing Data Lake Metadata Framework for Process Mining

The fourth industrial revolution consists of a new level of organization and control of the entire production process. Smart manufacturing ecosystem and especially Cyber Physical Systems are evolving rapidly. They constitute an environment with multiple heterogeneous sources that produce high volumes of data. This data need to be stored in a storage system that can handle raw, unprocessed, relational, and nonrelational data types, such as Data Lakes, in order to be processed when needed and bring insight. This paper introduces a Data Lake-based metadata framework, which utilizes the concept of blueprints to characterize the data sources and the data itself to facilitate process mining tasks. The applicability and effectiveness of the proposed framework is validated through a real-world smart manufacturing casestudy, namely a poultry meat production factory, which offers operational support and business workflow analysis.