wiki:ChangesFromNGR

Version 37 (modified by heikki, 15 years ago) ( diff )

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Collection of changes originating from Nationaal Georegister

Date 2009/08/24
Contact(s) 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 Nationaal Georegister. All changes are already implemented and visible (if applicable) in 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 this proposal
2. Persistent validation results --> moved to this proposal
3. Organizations --> moved to this proposal
4. Service monitoring --> moved to this proposal
5. Tabbed view of Metadata --> moved to this proposal
6. Local rating --> moved to this proposal
7. Relevance as a percentage
8. Hyperlink display

Another change proposal (INSPIRE support) will be separately described by Francois and Heikki. Yet another change proposal (replacing InterMap by OpenLayers) is already described here.

Proposal Type

  • Type: GUI Change, Core Change, Module Change
  • App: GeoNetwork
  • Module: Search engine, Data Manager, Group Manager, Rating

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

Proposal

1. Performance improvement to search
Moved to this proposal

2. Persistent validation results
moved to this proposal

3. Organizations
Moved to this proposal

4. Service monitoring
moved to this proposal

5. Tabbed view of Metadata
Moved to this proposal

6. Local rating
Moved to this proposal

7. Relevance as a percentage
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*.
In 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.




8. Hyperlink display
In 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.

Example of NGR displaying a link as a link


Backwards Compatibility Issues

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

Risks

Participants

  • As above

Attachments (7)

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