Fig. 2From: Pragmatic MDR: a metadata repository with bottom-up standardization of medical metadata through reuseAggregation of equivalent metadata definitions in the pragmatic MDR proof of concept. Simplified insertion procedure of two ODM models into the pragmatic MDR proof of concept application. Equivalent elements (Item B) and their children (Codelist B) are aggregated while their original occurrences are kept track of. The number of occurrences is used for frequency-based scoring during searchBack to article page