[Odrl-geospatial] Re: Odrl-geospatial Digest, Vol 1, Issue 2

[Michael A Domaratz]

This note (much delayed ...apologizes) is a reply to Mr. Iannella's Oct 14
message (see below).  I'm sending this note on Dan Wright's behalf and with
his knowledge (he returned to school and currently is not following the
list).

Dan's "resolution" element is not a function of the display device, and is
only in part a characteristic of the data. Dan was modeling a business rule
in which a distributor has orthophotos for which access to
reduced-resolution (a "resolution" of "1" in Dan's example) views of the
data was provided for free. For other "resolutions", rights for were
provided at no charge to selected communities, and for a fee to all others.

Michael Domaratz
US Geological Survey
mdomarat at usgs.gov



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  |       To:       odrl-geospatial at odrl.net                                                                                     |
  |       cc:                                                                                                                    |
  |       Subject:  Odrl-geospatial Digest, Vol 1, Issue 2                                                                       |
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Today's Topics:

   1. Geospatial DRM paper (Renato Iannella)


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

Message: 1
Date: Thu, 14 Oct 2004 16:47:02 +1000
From: Renato Iannella <renato at odrl.net>
Subject: [Odrl-geospatial] Geospatial DRM paper
To: odrl-geospatial at odrl.net
Message-ID: <DAB75AF6-1DAC-11D9-AF22-00306541C018 at odrl.net>
Content-Type: text/plain; charset=US-ASCII; format=flowed

Elaine wrote:
===
I have permission to post an article written by Daniel Wright, entitled
"Geospatial Digital Rights Management"  The article may be downloaded
at:  http://metadata.mannlib.cornell.edu/geo_odrl/
====

This paper covers some good requirements from the geospatial community.

I have one question/clarification on the example used to grant the
display permission for the asset at the "resolution of 1."
Is this characteristic part of the data or the display device?

If it is the former, the ODRL has a "quality" constraint, and all you
need to define is a URI for "resolution", for example:

<o-dd:display>
             <o-ex:constraint>
       <o-dd:quality o-ex:type="geospatial:resolution">
          <o-ex:constraint>
             <o-dd:range>
               <o-dd:max>1</o-dd:max>
             </o-dd:range>
          </o-ex:constraint>
       </o-dd:quality>
     </o-ex:constraint>
</o-dd:display>

Cheers

Renato Iannella
ODRL Initiative
http://odrl.net