Changes between Version 4 and Version 5 of CmdiOverview

Timestamp:

07/16/09 20:50:59 (15 years ago)

Author:

vronk

Comment:

revised the issue of semantic mapping

CmdiOverview

@@ -22 +22 @@
 == 3. Metadata Search & Browsing Service ==
 
-The metadata search service & browsing is offered to users via (1) a GUI allowing users to create queries on the basis of the elements and vocabularies available in the repository and (2) a web service. The service can make use of the references to the concept registry and relation registries to make different components interoperable if their semantics overlap. It is at this moment not clear if this should be implemented by having a semantic normalization step before storing the metadata descriptions in the repository or (as is depicted in the figure) having a translation of a metadata query into different component-specific ones. The first possibility places more emphasis on correct description and being able to retrieve that description using a familiar vocabulary and while the second places more emphasis on harmonizing all semantic content by having a well chosen normalized vocabulary. 
+The metadata search service & browsing is offered to users via (1) a GUI allowing users to create queries on the basis of the elements and vocabularies available in the repository and (2) a web service. The service can make use of the references to the concept registry and relation registries to make different components interoperable if their semantics overlap. ~~It is at this moment not clear if this should be implemented by having a semantic normalization step before storing the metadata descriptions in the repository~~ or (as is depicted in the figure) having a translation of a metadata query into different component-specific ones. The first possibility places more emphasis on correct description and being able to retrieve that description using a familiar vocabulary and while the second places more emphasis on harmonizing all semantic content by having a well chosen normalized vocabulary. ''(As discussed in Nijmegen 2009-05-14, metadata must be stored in the [wiki:CmdiRepository] as provided by the metadata providers. Any semantic mapping will be the sole competency of [wiki:CmdiRelationRegistry] used by [wiki:CmdiMetadataServices] when resolving/expanding queries.)''
+
 
 This text is derived from the CLARIN EU WP2 workdocument: [http://www.clarin.eu/node/2553 CLARIN metadata infrastructure]