Re: [Geowanking] Catalogue Services

Mon, 14 Aug 2006 18:24:33 -0700

Hi,

I would second Ugo's point that the demise of a the basic OGC Catalog has been greatly exaggerated. As part of the OWS-4 testbed, in fact, a concrete "basic profile" is being specified, developed into a reference implementation, and tests developed for specification conformance. This profile is based upon a simple record schema (csw:Record and abbreviated forms) which is almost entirely made up of DC elements, and includes RESTful HTTP GET and POST request bindings. 

It can be about as simple as can be imagined, depending on how one uses the DC elements. Certain elements are in the record schema are further constrained with specific encodings, (e.g. dct:Spatial) to improve the interoperability of such things as spatial queries.

Cheers,

Josh Lieberman
OWS-4 Catalog Architect

Joshua Lieberman, Ph.D.

Principal, Traverse Technologies Inc.

mailto:[EMAIL PROTECTED]

tel +1 (617) 395-7766

fax +1 (775) 514-6621


On Aug 9, 2006, at 5:42 AM, Ugo Taddei wrote:

Hello,

if you browse your way through the deegree cvs you'll find DB scripts for creating a DC Catalog for PostGIS.


There's also a web-app for the CSW and a browser-based client (in other dirs).

Hope that helps.

Cheers,

Ugo

Norman Barker wrote:
On 7/26/06, Ugo Taddei <[EMAIL PROTECTED]> wrote:
Hi,

Just van den Broecke wrote:
> 2$ct: I am not a specialist on WCAS but people in the field mention
> an OSS WCAS solution.
Yes, true. It's worth mentioning. Thanks.

I think there's support for soap, but I'm not a catalog expert. There is
also a Web module/client available (based on deegree's web client, the
iGeoPortal).

 From the fly-sheet:
Technical Features
–Support of complex metadata models without requiring a specific
database schema
–Support of the core profile as defined in CS-W specification
–Support of CS-W 2.0 ISO 19115/19119 Application Profile
–Extension possibilities for in- and output using XSLT filters as pre-
and post processors.

Please post and further questions to the deegree lists.

Cheeers,

Ugo
>
> --Just
>
> Just van den Broecke [EMAIL PROTECTED]
> Just Objects B.V. tel +31 65 4268627 Skype: justb4
> The Netherlands http://www.justobjects.nl
>
> Norman Barker wrote:
>
>> Hi,
>>
>> what is the best way to implement a catalogue service now, and which
>> profile are we supposed to follow?
>>
>> I would like to use postgis as the database, is there an example
>> schema for registering coverage metadata any where, I am thinking that
>> the spatial queries coming from a client require a spatial database as
>> the backend.
>>
>> Any thoughts would be appreciated, I would like the catalogue to be
>> programmatic (soap based) if possible.
>>
>> I know about GeoNetwork, but am wondering whether to develop a
>> catalogue I need such a framework.
>>
>> Norman
>> _______________________________________________
>> Geowanking mailing list
Hi,

I appreciate the advice of pointing to existing frameworks such as
Deegree, GeoNetwork.  My interest is in creating a database schema
that accomodates the necessary coverage metadata, and the soap profile
to employ (ebRIM?).  There seems to be a lot of discussion of this,
and I am interested in setting up a postgis database with the coverage
metadata (how much / little should I record, access roles etc.), and
publishing my own soap services.

Norman
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