[GeoNetwork-devel] metadata hierarchy

GeoNetwork GeoNetwork Developer
1

First off, great work with GeoNetwork v2.2.

Secondly, has there been any discussion around metadata hierarchy? Or more specifically, hierarchical metadata search? The ability to search for a general parent topic (e.g. Trees) and then search within the results or children (e.g. Deciduous, Coniferous) has come up a couple of times in a number of my discussions.

I realize that this is a loaded question. I’m just curious to know if there has been any discussion around this topic.

Thank you.

Grant McKenzie
GIS Developer
Enterprise Management Solutions

CH2M Hill
Seattle WA
Direct: 425.233.3271
Mobile: 425.233.4562
grant.mckenzie@anonymised.com

2

Hi Grant,

On Apr 10, 2008, at 7:00 PM, Grant.McKenzie@anonymised.com wrote:

First off, great work with GeoNetwork v2.2.

Secondly, has there been any discussion around metadata hierarchy? Or more specifically, hierarchical metadata search? The ability to search for a general parent topic (e.g. Trees) and then search within the results or children (e.g. Deciduous, Coniferous) has come up a couple of times in a number of my discussions.

Yes, in a couple of forms.
1- Just as parent child relations between metadata records. There are some hidden facilities available already, but not with a web interface to use it, just plain XML services that could be used in a custom site. It includes a very basic service to add, update and delete such relations.

2- using thesauri and indexes based on searching content using the keywords added to metadata. This one is not exploited yet and is something we definitely need to add in the future.

Ciao,
Jeroen

I realize that this is a loaded question. I’m just curious to know if there has been any discussion around this topic.

Thank you.

Grant McKenzie
GIS Developer
Enterprise Management Solutions

CH2M Hill
Seattle WA
Direct: 425.233.3271
Mobile: 425.233.4562
grant.mckenzie@anonymised.com

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3

For our own specific needs, we have redefined the usage of the GeoNetwork Category table to include a parent field.

We then define a tree of categories. Finally we assign a metadata to one or various leaf categories. This allows us to navigate hierarchically through the categories to find a metadata or a collection of metadata. The original GeoNetwork categories can be kept by not assigning a parent to them.

Jean-François

------------------------------------

Jean-François Meunier

Conseiller principal, gestion du territoire et géomatique

DMR, une division de Fujitsu Conseil (Canada) inc.

111, rue Duke, bureau 4500

Montréal (Québec) H3C 2M1

Canada

Bureau: 514-393-8822, poste 512

jean-francois_meunier@anonymised.com9…

http://www.dmr.ca

From: Jeroen Ticheler [mailto:Jeroen.Ticheler@anonymised.com]
Sent: 10 avril 2008 16:01
To: Grant.McKenzie@anonymised.com
Cc: geonetwork-devel@lists.sourceforge.net
Subject: Re: [GeoNetwork-devel] metadata hierarchy

Hi Grant,

On Apr 10, 2008, at 7:00 PM, Grant.McKenzie@anonymised.com wrote:

First off, great work with GeoNetwork v2.2.

Secondly, has there been any discussion around metadata hierarchy? Or more specifically, hierarchical metadata search? The ability to search for a general parent topic (e.g. Trees) and then search within the results or children (e.g. Deciduous, Coniferous) has come up a couple of times in a number of my discussions.

Yes, in a couple of forms.

1- Just as parent child relations between metadata records. There are some hidden facilities available already, but not with a web interface to use it, just plain XML services that could be used in a custom site. It includes a very basic service to add, update and delete such relations.

2- using thesauri and indexes based on searching content using the keywords added to metadata. This one is not exploited yet and is something we definitely need to add in the future.

Ciao,

Jeroen

I realize that this is a loaded question. I’m just curious to know if there has been any discussion around this topic.

Thank you.

Grant McKenzie

GIS Developer

Enterprise Management Solutions

CH2M Hill

Seattle WA

Direct: 425.233.3271

Mobile: 425.233.4562

grant.mckenzie@anonymised.com

This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don’t miss this year’s exciting event. There’s still time to save $100.
Use priority code J8TL2D2.
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GeoNetwork-devel mailing list
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GeoNetwork OpenSource is maintained at http://sourceforge.net/projects/geonetwork

4

Hello,

I'm looking for information on the functionalities described below.

Jean-Francois Meunier wrote:

For our own specific needs, we have redefined the usage of the GeoNetwork
Category table to include a parent field.

We then define a tree of categories. Finally we assign a metadata to one
or various leaf categories. This allows us to navigate hierarchically
through the categories to find a metadata or a collection of metadata. The
original GeoNetwork categories can be kept by not assigning a parent to
them.

Jean-François, is your work available somewhere ?

Jeroen Ticheler wrote:

1- Just as parent child relations between metadata records. There are some
hidden facilities available already, but not with a web interface to use
it, just plain XML services that could be used in a custom site. It
includes a very basic service to add, update and delete such relations.

Jeroen, is there any documentation somewhere on how to use these hidden
facilities (if they're still available in trunk) ?

Thanks,

Alain

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5

Hello Alain,

2010/8/31 acangi <aca@anonymised.com>:

Hello,

I'm looking for information on the functionalities described below.

Jean-Francois Meunier wrote:

For our own specific needs, we have redefined the usage of the GeoNetwork
Category table to include a parent field.

We then define a tree of categories. Finally we assign a metadata to one
or various leaf categories. This allows us to navigate hierarchically
through the categories to find a metadata or a collection of metadata. The
original GeoNetwork categories can be kept by not assigning a parent to
them.

Jean-François, is your work available somewhere ?

Jeroen Ticheler wrote:

1- Just as parent child relations between metadata records. There are some
hidden facilities available already, but not with a web interface to use
it, just plain XML services that could be used in a custom site. It
includes a very basic service to add, update and delete such relations.

Jeroen, is there any documentation somewhere on how to use these hidden
facilities (if they're still available in trunk) ?

Parent/child relation are available in 2.6.x. See user documentation
quickstartguide/new_metadata/index.html#linking-metadata
You could have a look to the proposal [1] also.

Cheers.
Francois

[1] http://trac.osgeo.org/geonetwork/wiki/MetadataRelation

Thanks,

Alain

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View this message in context: http://osgeo-org.1803224.n2.nabble.com/metadata-hierarchy-tp2019942p5481759.html
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