Hi Jeff,
Very timely email!
There is another repository that has some similarities to RAMADDA: GeoNetwork.
GeoNetwork also has a simple http repository for files which I would really
like to replace with RAMADDA's scientific content management system and it
seems a natural fit for RAMADDA to provide metadata fragments from its content
types to fill out some of the metadata fields in GeoNetwork metadata records
(we already can harvest metadata from THREDDS to fill out fragments of ISO
metadata records). On the flip side, GeoNetwork has pretty good support for a
lot of metadata standards (especially ISO and profiles) etc, good basis in
Lucene search, some nice metadata catalog operations (harvesting protocols etc)
and nice acceptance from a lot of organisations so there are benefits for
RAMADDA if GeoNetwork was to handle the metadata side of RAMADDA.
I've had quite a look at and evaluation of RAMADDA and am definitely interested
in fostering direct, resourced collaboration on bringing the benefits of both
RAMADDA and GeoNetwork together. I am a member of the GeoNetwork Project
Steering Committee and would definitely like to discuss this further!
Cheers,
Simon
----
PS: Also fixed a nagging bug sometime ago with the RAMADDA THREDDS harvester
(1.5a) a few months ago - but never got round to supplying it to you - can I
email you the simple patch?
________________________________________
From: thredds-bounces@xxxxxxxxxxxxxxxx [thredds-bounces@xxxxxxxxxxxxxxxx] on
behalf of Jeff McWhirter [jeff.mcwhirter@xxxxxxxxx]
Sent: Monday, 24 June 2013 10:46 PM
To: THREDDS
Subject: [thredds] data repository survey
Hi all,
The Unidata folks recently presented a survey of data repositories:
http://www.unidata.ucar.edu/committees/usercom/2013Apr/summary.html
The intent was to identify and compare systems that are similar to RAMADDA
(http://ramadda.org) and presumably the TDS. Some of the systems mentioned were
new to me and the survey does not provide much detail on them.
For all of you TDS users out there -
Has anyone tried the above mentioned systems - e.g, ckan.org<http://ckan.org>,
dataone, science base
What other systems have you evaluated? (ESRI Geoportal, EuroGEOSS broker, ???)
What kinds of features do they have that you have found useful?
What features would you like to see in a data repository?
For those of you who aren't familiar with RAMADDA below is a quick overview of
some of its features.
-Jeff
RAMADDA is a data and information management framework that supports all kinds
of digital "stuff".
Some of the key features include:
Extensible content type system
Extensible metadata framework - define new metadata types via xml - e.g.,
DIF, THREDDS, etc
Model-View framework: content encodings include various HTML views (mapping,
calendar, timeline),
JSON, Geo-RSS, ATOM-XML, DIF, CSV, THREDDS Catalog, ICAL, etc.
Content management services - create, read, update, delete (CRUD)
Fully featured HTML template facility
User and role-based access control
Comprehensive plugin framework
Rich search - text, spatial, temporal and faceted metadata
APIS - Publishing APIs, OAI-PMH, OpenSearch, import/export
Integrated rich content wiki facility
Virtual repository facility
RAMADDA environment:
100% Java, Open-source (https://sourceforge.net/projects/ramadda/)
Built on the standard Java servlet framework and runs under any servlet
container
- e.g., Tomcat, Glassfish or runs from the command line with Jetty
Uses *any* JDBC compliant relational database - Derby, H2, Oracle, PostGRES,
mySQL
Web-based administration and configuration
Integrated user model or external authentication via LDAP, etc
Gridded data:
ses the Java NetCDF stack
spatial, temporal and faceted metadata extraction and search
spatial and temporal subset service, time series extraction service
OpenDAP
Metadata browse and NCML generation
NCO (NetCDF Operators) and CDO (Climate Data Operators) integration
NCML-based data model modifications, grid aggregation
IDV-based server side visualization
Climate model data management and analysis package
Point data:
File reader framework - over 40 file formats to date
spatial, temporal and faceted metadata extraction
metadata and data browse, mapping and charting
spatial, temporal and paramater value based subset
aggregation
point format conversions - to NetCDF, LAS, CSV, etc.
gridding and product generation
web service API
Other data types and services:
Structured information - bibliography, Blog, Glossary, FAQ, Notes, Photo album
Science project ontology constructs -program, project, site, visit, campaign,
dataset
shapefiles, GPX, raw GPS, RiNEX, all radar file formats, FITS astronomy data
email ingest and publishing service, SMS integration with Twilio
Extensible structured lists - bookmarks, todo, status board, tasks, etc
