Difference between revisions of "RDF Mapping"
Jump to navigation
Jump to search
Line 14: | Line 14: | ||
* elements that can occur many times are represented with two triples, the second one for typification | * elements that can occur many times are represented with two triples, the second one for typification | ||
* e.g.: escidoc:5676598 dc:identifier | * e.g.: escidoc:5676598 dc:identifier isbn:3234-5656-X. isbn:3234-5656-X rdf:type "ISBN" | ||
** as far as i know literals cannot be subjects for rdf triples. you'd rather need an intermediate node to attach type info and literal value to.[[User:Robert|Robert]] 09:50, 16 January 2009 (UTC) | ** as far as i know literals cannot be subjects for rdf triples. you'd rather need an intermediate node to attach type info and literal value to.[[User:Robert|Robert]] 09:50, 16 January 2009 (UTC) | ||
*** you're right. Thnx.--[[User:Kurt|Kurt]] 09:05, 19 January 2009 (UTC) |
Revision as of 09:05, 19 January 2009
General Rules for Metadata Mapping to RDF[edit]
Item Startnode[edit]
- the first triple describing an item starts with the value of the system (escidoc-id) identifier as triple subject
- e.g.: escidoc:42365456 dc:title "This is my book"
1:1 Connections[edit]
- elements that can occur atmost 1 times are represented as direct predicates of the startnode.
- e.g.: PND:56235 foaf:lastname "Maier"
1:* Connections with types[edit]
- elements that can occur many times are represented with two triples, the second one for typification
- e.g.: escidoc:5676598 dc:identifier isbn:3234-5656-X. isbn:3234-5656-X rdf:type "ISBN"