= Collection of changes originating from [http://nationaalgeoregister.nl Nationaal Georegister] =

|| '''Date''' || 2009/08/24 ||
|| '''Contact(s)''' || [http://wiki.osgeo.org/wiki/User:Heikki Heikki Doeleman] ||
|| '''Last edited''' || [[Timestamp]] ||
|| '''Status''' || draft ||
|| '''Assigned to release''' || 2.5 ||
|| '''Resources''' || The work is done in the NGR project ||

== Overview ==
 
This proposal combines various changes originally implemented in a !GeoNetwork fork in the project [http://nationaalgeoregister.nl Nationaal Georegister]. All changes are already implemented and visible (if applicable) in [http://nationaalgeoregister.nl Nationaal Georegister]. The changes are otherwise unrelated, but they are not very big and I think it's more efficient to bundle them in this single proposal.

The proposed changes are:

'''1.''' Performance improvement to search --> moved to [http://trac.osgeo.org/geonetwork/wiki/PerformanceImprovementInSearch this proposal][[BR]]
'''2.''' Persistent validation results --> moved to [http://trac.osgeo.org/geonetwork/wiki/PersistentValidationResults this proposal][[BR]]
'''3.''' Organizations --> moved to [http://trac.osgeo.org/geonetwork/wiki/Organization this proposal][[BR]]
'''4.''' Service monitoring --> moved to [http://trac.osgeo.org/geonetwork/wiki/ServiceMonitoring this proposal][[BR]]
'''5.''' Tabbed view of Metadata --> moved to [http://trac.osgeo.org/geonetwork/wiki/TabbedView this proposal][[BR]]
'''6.''' Local rating --> moved to [http://trac.osgeo.org/geonetwork/wiki/LocalRating this proposal][[BR]]
'''7.''' Relevance as a percentage[[BR]]
'''8.''' Hyperlink display[[BR]]

Another change proposal (INSPIRE support) will be separately described by [http://wiki.osgeo.org/wiki/User:Fxp Francois] and [http://wiki.osgeo.org/wiki/User:Heikki Heikki]. Yet another change proposal (replacing !InterMap by !OpenLayers) is already described [http://trac.osgeo.org/geonetwork/wiki/ReplacingIntermap here].



=== Proposal Type ===
 * '''Type''': GUI Change, Core Change, Module Change
 * '''App''': !GeoNetwork
 * '''Module''': Search engine, Data Manager, Group Manager, Rating

=== Links ===
 
 * '''Email discussions''': on geonetwork-devel: [http://n2.nabble.com/Proposals-to-include-NGR-functionality-to-GeoNetwork-trunk-td3365623.html#a3365623 "Proposals to include NGR functionality to GeoNetwork trunk"]

=== Voting History ===
Although presented together in one proposal, all items will be put up for voting separately.
 * None as yet

----

== Motivations ==
The motivations for these changes are :

'''1.''' A better performance is preferred[[BR]]
'''2.''' More informative search results; motivate metadata providers to produce good quality metadata[[BR]]
'''3.''' The notion of Organization is lacking in !GeoNetwork's domain model[[BR]]
'''4.''' More informative search results; motivate service providers to keep them up[[BR]]
'''5.''' Better usability[[BR]]
'''6.''' Local user feedback[[BR]]
'''7.''' Better usability[[BR]]
'''8.''' Better usability[[BR]]

== Proposal == 

'''1. Performance improvement to search'''[[BR]]
Moved to [http://trac.osgeo.org/geonetwork/wiki/PerformanceImprovementInSearch this proposal]
[[BR]][[BR]]

'''2. Persistent validation results'''[[BR]]
moved to [http://trac.osgeo.org/geonetwork/wiki/PersistentValidationResults this proposal]
[[BR]][[BR]]

'''3. Organizations'''[[BR]]
Moved to [http://trac.osgeo.org/geonetwork/wiki/Organization this proposal]
[[BR]][[BR]]

'''4. Service monitoring'''[[BR]]
moved to [http://trac.osgeo.org/geonetwork/wiki/ServiceMonitoring this proposal]
[[BR]][[BR]]


'''5. Tabbed view of Metadata'''[[BR]]
Moved to [http://trac.osgeo.org/geonetwork/wiki/TabbedView this proposal]
[[BR]][[BR]]

'''6. Local rating'''[[BR]]
Moved to [http://trac.osgeo.org/geonetwork/wiki/LocalRating this proposal]
[[BR]][[BR]]

'''7. Relevance as a percentage'''[[BR]]
In standard !GeoNetwork search results can be ordered by relevance. This is based on the relevance score that the Lucene search engine gives to each item in the search results. However it is not shown to the user what the relevance score for each result *is*.[[BR]]
In [http://nationaalgeoregister.nl NGR] the relevance score is displayed with each search result. Because the Lucene score is an unattractive float between 0 and 1, the relevance score is normalized such that the highest score from the search results is set to 100, and all other results' scores are calculated relative to that.[[BR]][[BR]]
[[Image(ngr.relevance.percentage.png)]][[BR]]
[[BR]][[BR]]

'''8. Hyperlink display'''[[BR]]
In [http://nationaalgeoregister.nl NGR], when metadata is displayed, any hyperlinks in the text are actually displayed as clickable links. The link types that are recognized are: http, https, ftp, and mailto.
[[BR]][[BR]]
[[Image(ngr.urls.links.png)]][[BR]]
[[BR]][[BR]]


=== Backwards Compatibility Issues ===

'''1.''' none[[BR]]
'''2.''' a database change is required. SQL script to update existing DBs will be available[[BR]]
'''3.''' a database change is required. SQL script to update existing DBs will be available[[BR]]
'''4.''' a database change is required. SQL script to update existing DBs will be available[[BR]]
'''5.''' none[[BR]]
'''6.''' none[[BR]]
'''7.''' if implementations use the raw Lucene score for anything, that will be broken (not in standard !GeoNetwork)[[BR]]
'''8.''' none[[BR]]

== Risks ==

== Participants ==
 * As above