From gbuehler at opengeospatial.org  Thu Apr  3 14:07:06 2008
From: gbuehler at opengeospatial.org (Greg Buehler)
Date: Thu, 03 Apr 2008 14:07:06 -0400
Subject: [GSDI Membership] Upcoming Downtime for GSDI Friday 2008-04-04
Message-ID: <47F51CCA.4090701@opengeospatial.org>

Dear GSDI,

*********************************
*  Apologies for Cross-Posting  *
*********************************

GSDI List Management will have scheduled downtime for maintenance
beginning today and lasting through the weekend.

Note: Only the email list services will be affected by this downtime.

While GSDI migrates their email list services to a new server, all email
lists and the email list websites including archives will be down for
intermittent downtime.  If you post messages to these lists during the
next few days you may receive an undeliverable notice as the hosting IP
address is changed and updated.  It is recommended that you do not send
any mail to the lists until the weekend is over.  Beginning Monday
everything should function as normal.

  * Fri 2008-04-04 08:00 EDT - Sun 2008-04-06 19:00 EDT
   (Fri 2008-04-04 12:00 GMT - Sun 2008-04-06 23:00 EDT)
   - All GSDI email list services down for maintenance.

No GSDI staff email address with be affected by this downtime.

We apologize in advance for any inconvenience this might cause.

Greg

-----
Greg Buehler <gbuehler at opengeospatial.org>
Open Geospatial Consortium, Inc. (OGC)
Technology Office
4899 North Old SR 37
Bloomington, IN  47408-9239 USA
T: +1.812.334.0601  F: +1.812.961.2053
http://www.opengeospatial.org/


From asmatali at yahoo.com  Fri Apr  4 08:16:57 2008
From: asmatali at yahoo.com (Asmat Ali)
Date: Fri, 4 Apr 2008 13:16:57 +0100 (BST)
Subject: [GSDI Membership] Pitfalls of SDI Hierarchy
Message-ID: <948129.65699.qm@web36506.mail.mud.yahoo.com>

SDIs developments take place at different levels. It can be developed at corporate level, local level, state level, national level (NSDI), regional level and global level. Their characteristics vary with the level at which they are developed and this level includes administrative as well as geographical level due to different needs at different levels. But the SDI?s Hierarchy model presented by Rajabifard (2002) does have certain pitfalls which are discussed in attached file and an effort has been made to propose a new SDI?s Hierarchy model. 
  Regards
  Asmat Ali
  A.Director
  Survey of Pakistan
  Rawalpindi
  Pakistan

       
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