[OSGeo-Discuss] EXI with XML data streams

Newcomb, Doug doug_newcomb at fws.gov
Tue Mar 31 08:00:35 PDT 2015

According to the presenter, it would lessen the bandwidth by a couple of
orders of magnitude for streamed XML formats.


On Mon, Mar 30, 2015 at 10:59 AM, Even Rouault <even.rouault at spatialys.com>

> Le lundi 30 mars 2015 16:47:26, Newcomb, Doug a écrit :
> > Hi Folks,
> > Sitting in on a standards meeting and just heard about EXI, Efficeint XML
> > Interchange
> > http://www.w3.org/XML/EXI/.  It seems that this would be useful for
> > reducing bandwidth requirements for XML data streams such as WFS.  Has
> > anyone looked at that?
> Doug,
> I don't know about EXI, but most web servers should already support GZip
> compression out of the box, with no impact on WFS client&server code, so
> EXI should offer significant compression ratio over GZip-compressed XML to
> really be an incentive to be adopted by both WFS client & servers. WFS
> servers
> also often the possibility of alternate outputFormat to GML, such as zipped
> shapefile, etc..
> Even
> --
> Spatialys - Geospatial professional services
> http://www.spatialys.com

Doug Newcomb
Raleigh, NC
919-856-4520 ext. 14 doug_newcomb at fws.gov
The opinions I express are my own and are not representative of the
official policy of the U.S.Fish and Wildlife Service or Dept. of the
Interior.   Life is too short for undocumented, proprietary data formats.
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