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| Subject: | RE: GISList: GIS P2P - * Market Research Question * |
| Date: |
01/20/2003 08:21:52 PM |
| From: |
William Howell |
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Actually if they are looking for a Napster like solution the files
aren't stored on any server: it is a peer to peer system. This is how
Napster took off: there was no strain on central servers to "serve"
files and as people shared there were more people to retieve the files
from as they propogated to more users. This distributed network only
required a few servers which handled logging of who's online and
[relatively] very little bandwidth requirements.
A better model would be kazaa (unlike napster, still running strong)
which discriminates file types, incorporates user rating of quality and
file tagging for comments as well as properties. In this respect
properties of the files could be searched for (ie looking for topos of
Texas in UTM after the year 1985 where datum and date and ancillary
components on the search). This uses the Fast Track protocol which this
new software might be able to piggyback on.
William L. Howell
-----Original Message-----
From: Robert Heitzman [mailto:rheitzman@hotmail.com]=20
Sent: Friday, January 10, 2003 3:48 PM
To: pramsey@refractions.net: ajq3@spatialnetworks.com
Cc: gislist@geocomm.com
Subject: Re: GISList: GIS P2P - * Market Research Question *
>The lack of metadata in most standard files. In the music case, two=20
>things
>worked in favour of Napster: file names and MP3 ID tags provided just=20
>enough metadata to allow for a reasonable search. With GIS files,
assuming=20
>the people have not filled in any metadata "helper" files like the new=20
>ArcGIS XML files, the most info you can get would be file name and
spatial=20
>extent.
>
>I still think it could be useful though. The sheer usefulness of simple
>FTP
>"archive" sites inside organizations indicates to me that an
easy-to-setup=20
>and globally published (via the napster central directory) system would
be=20
>an order-of-magnitude more useful.
>
Ditto Paul's points.
Folks should be requried to post minimal metadata in order to register
their=20
data.
I assume the model is the directory is centrally located but the actual
data=20
is dispersed to various download points on the internet. Some QOS
minimum=20
should be required to stay registered and those who fail to provide a
useful=20
download point should have their ercords renmoved or flagged as less
than=20
useful.
Hard to say were the revenue would come from for the host. Perhaps
charging=20
folks to register any significant amount of data would be one source.=20
Providing an ftp site for rent to store the data another. I would
suppose=20
lots of small providers would not have a good way to have a public
internet=20
ftp site.
Something that may be a nice feature to sell is a way for an
organization to=20
provide a view of the stored files that is limited to their data. Not to
exclude others but to provide a well organized public face to their
data.=20
This may allow small jurisdictions (Cites/Counties/etc.) a cheap way to
get=20
a public GIS download presence. Something akin to the google.com search=20
limited to one newsgroup.
BTW I think this model was proposed by Dimitri Rtow of Manifold.net a
long=20
time ago as a solution for distibution of public domian data.
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