[Freegis-list] WMS WFS PostGIS architecture question.

[Peter Fischer]

Hello,

I have a question concerning the architecture of WMS/WFS and PostGIS:
Is PostGIS just for WFS or could it be used also to store the card
material for a WMS? - How typically a WMS stores its card material?
Also in sort of a database? - Is it standardized? Or is the card
material just stored in a directory/file structure without database
functionality?

Furthermore, I found the following PDF:

http://lists.refractions.net/pipermail/postgis-users/attachments/20020424/20dcffd7/OGC-OSS.pdf

On page 2 the WFS on the bottom acesses Rasters and Images. But I
thought, WFS is just for vector data (features), stored in e.g.
ESRI shapes or PostGIS, like the other two datasources. But is it
really true like in this diagram that a WFS also can access raster
images? - I thought this is normally done by WMS/WCS?

Please could anyone help to clear my confusion?

Best regards,

Peter.
       Shape Yahoo! in your own image.  Join our Network Research Panel today!http://us.rd.yahoo.com/evt=48517/*http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 hot CTA = Join our Network Research Panel
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.intevation.de/pipermail/freegis-list/attachments/20070523/414800c9/attachment.html