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Database integration. Piccard, WILC, WZMA, NIKI. Common to all 4 databases. Watermarks: Reference number Motif group (category) Date (if available) Source Height Distance of chainlines. Examples for differences. Width of watermark not in WILC Number of chainlines
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Database integration Piccard, WILC, WZMA, NIKI
Common to all 4 databases • Watermarks: • Reference number • Motif group (category) • Date (if available) • Source • Height • Distance of chainlines
Examples for differences • Width of watermark • not in WILC • Number of chainlines • not in Piccard and NIKI • Maker • not in WZMA • Begin-Date + End-Date • not in WILC
Proposal for a new database • Object oriented approach • vs. hierarchical categorisation • Class hierarchy: • Object: Composition or Element • Composition: Objects + spatial Relation • spatial Rel.: e.g. TopBottom, LeftRight, Inside • Element • e.g. Head ->Bullhead, Mouth, Horns
Example watermark • Bullhead + Cross + Crown
Example watermark in XML <watermark id="12345"> <description>Bullhead with Eyes and Horns</description> <date from="1500" to="1600" /> <object class="Bullhead"> <property name="Mouth" /> <property name="Eyes"> <object class="ParticularEyes"> </object> </property> <property name="Nose“ /> <property name="Horns"> <object class="ParticularHorns"> </object> </property> </object> </watermark>
Requirements for suggested new database • Export from existing 4 databases • Watermarks and categories • Images ? • Specification of class hierarchy • Define Mapping of each category to classes • Import to new database • Mapping to class hierarchy (automatically) • Additional attributes for each watermark (manually)