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Subject: Re: [search-ws] Fw: Advice needed on federated search

Ray -

In the geospatial community, there has been considerable discussion, 
research, and implementation of federated catalogues that federated search. 
This is especially true in the earth observation community (which DoD should 
have a great interest in). Numerous references including:


I know that these are quite a few links :-)

Also, they should check out what the Canadian community has done as part of 
the Canadian Geospatial Data infrastructure. They have implemented a 
federated (national) distributed catalogue and search capability based on 

Hope this helps!



----- Original Message ----- 
From: "Ray Denenberg, Library of Congress" <rden@loc.gov>
To: <search-ws@lists.oasis-open.org>
Sent: Thursday, February 12, 2009 9:47 AM
Subject: [search-ws] Fw: Advice needed on federated search

> Anyone here have any advice I can pass on to Mr. Lemen?  --Ray
> ----- Original Message ----- 
> From: "Dave Lemen" <dave.lemen@ugov.gov>
> To: <rden@loc.gov>
> Cc: "John E. Hale" <john.e.hale@ugov.gov>
> Sent: Thursday, February 12, 2009 10:06 AM
> Subject: Advice needed on federated search
>> Mr. Denenberg,
>> I've been following the work of the OASIS SWS Technical Committee with 
>> interest. The organization I support, Intelligence Community Enterprise 
>> Solutions (ICES), is part of the Director of National Intelligence CIO 
>> organization, and provides search and discovery services that allow the 
>> sharing and integration of information between the intelligence agencies 
>> and their customers. In addition to providing search tools (as well as 
>> other community services) on Intelink, ICES is also the DoD's managed 
>> service provider for Content Discovery on its secret and unclassified 
>> networks.
>> As you may know, the DoD developed a Search Web Service specification 
>> under the Horizontal Fusion program back in the 2003-2004 time frame. 
>> Since then, the IC and DoD have tried, unsuccessfully, to arrive at an 
>> updated, joint federated search protocol. There's general support for 
>> using a combination of Atom, OpenSearch, and the Defense Discovery 
>> Metadata Standard (DDMS) as the basis for a new specification. However, 
>> we haven't come to agreement on query syntax or Web service style (SOAP 
>> vs. REST). Our decision on Web service style is very much affected by the 
>> access controls on some of the content sources, and use cases that 
>> involve federating searches across security domains.
>> Our organization would appreciate your input on some very near-term 
>> decisions we need to make in this area. Specifically, what protocol(s) 
>> would you recommend we implement this year (and what should we avoid), in 
>> order to line up with the direction you see the OASIS work going? Also, 
>> what direction do you see commercial product support going in this area?
>> Please call me at the number below if you'd like. We can also arrange to 
>> visit your office, or host a visit to ours as your schedule allows.
>> Best regards,
>> Dave Lemen
>> DNI CIO | IC Enterprise Solutions
>> CSC Contractor
>> dave.lemen@ugov.gov
>> 410-854-9634
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