This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Hierarchisches Datenbankmodell.svg de Hierarchisches Modell en Hierarchical model es Modelo jerrquico ja own Sarang Hierarchisches Datenbankmodell Hierarchisches Modell svg extremly complicated erroneous drawing Network DB model svg Netzwerkdatenbankmodell svg extremly complicated erroneous drawing Hierarchical models Data