Stefan,
You're talking about capabilities documents linking to other
capabilities documents, forming a "web of services"? I think it's
probably going to be more profitable to exploit one of the bigger,
more fertile webs (using HTML or RDF), each of which have proven
techniques for making your content discoverable.
Sean
On Jul 23, 2009, at 1:17 AM, Stefan Keller wrote:
How about getting better auto-discovery in the Geo-Web?
How about more special search engines for geospatial webservices?
Approach: Step 1. a focussed crawler is referred to a webservice given
a (root) geo-website (“see” link) and step 2. the referrer and/or the
geo-webservice indicates one or more "friends" ("see also" link, [2]).
In other words, a porter points to the webservices - which is like a
finding needle in the haystack - and he and the found needles point
you to other needles!
These are the proposals I've collected so far:
1. extending robots.txt (see [1])
2. extending links/META tags in HTML ([1])
3. extending (geo-)sitemaps (www.sitemaps.org), and
4. extending GetCapabilities
What do you think?
Regards, S.
P.S. I favor 1,2 and 4. And I know I rather should ask geo-metadata
specialists (which I'll do) - but I think this is the right place to
start with.
[1]
http://www.openarchives.org/pipermail/oai-implementers/2006-November/001656.html
.
[2] http://www.openarchives.org/OAI/2.0/guidelines-friends.htm .
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--
Sean Gillies
Software Engineer
Institute for the Study of the Ancient World
New York University
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