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Sebastian Mate // Department for Medical Informatics // University <strong>of</strong> Erlangen-Nuremberg<br />

Methods: Ontology Mapping<br />

… with Semantic Web techniques<br />

Gleason3<br />

PSA<br />

ADD<br />

Gleason1<br />

Gleason2<br />

PSA_value<br />

PSA:<br />

Target Dataset<br />

Target Ontology Mapping Ontology Source Ontology Source System<br />

• Administrative knowledge: The data element „Gleason3“ is not captured in the<br />

source system (EMR), but it is needed to answer research questions.<br />

• Medical knowledge: The Gleason Score 3 is the sum <strong>of</strong> Gleason Score 1 and 2.<br />

• Technical knowledge: To export the data element „Gleason3“, you need to add<br />

the data elements „Gleason1“ and „Gleason2“.<br />

19

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