Analyzing Multi-level BOM-Structured Event Data

With the advent of Industry 4.0, increasing amounts of data on operational processes (e.g., manufacturing processes) become available. These processes can involve hundreds of different materials for a relatively small number of manufactured special-purpose machines rendering classical process discovery and analysis techniques infeasible. However, in contrast to most standard business processes, additional structural information is often available-for example, Bills of Materials (BOMB), listing the required materials, or Multi-level Manufacturing Bills of Materials ((MBOMs)-B-2), which additionally show the material composition. This work investigates how structural information given by Multi-level Bills of Materials ((MBOMs)-B-2) can be integrated into a top-down operational process analysis framework to improve special-purpose machine manufacturing processes. The approach is evaluated on industrial-scale printer assembly data provided by Heidelberger Druckmaschinen AG.