Exploitation of Heterogeneous Metadata

The data generated in the design and manufacture of tools and dies is rarely used in a targeted manner. However, it contains a significant wealth of knowledge that can be used to predict important parameters. For example, the metadata generated during the CAM programming of die-sinking electrodes can be used to extract parameters suitable to predict the subsequent erosion duration. A major hurdle in making data usable is their heterogeneity in number, format and employed terminology. This article presents a structured method for integrating heterogeneous data and making them queryable via a uniform interface. Its added value is demonstrated by means of a use case from die-sinking EDM.