Dear Sean, dear all > http://tools.ietf.org/html/draft-nottingham-http-link-header-06#section-6.2
Use of the "related" or "service" relation types from was a good hint. => But I'm not sure where do you think these typed links should reside: Inside a OWS (XML) service response or in a human oriented, HTML based website? > Is there an internet media type specified for OWS capabilities? I'm not aware of some but I'm not sure => Perhaps an OGC guru can help? My current most promising approach still is twofold: 1. propose to embed typed links in HTML (as you mentioned) and 2. propose an OWS extention to OGC (i.e. a media type as well as a relaton typed link) For 1. a robots.txt extension still sounds promising to me and for 2. this would make it easy to implement this into software (and nice GUIs) so metadata and configuration maintainers can easily provide this relationship information. I'm looking forward to hear your opinions. Stefan 2009/7/28 Sean Gillies <[email protected]>: > Perhaps use the "related" or "service" relation types from > > http://tools.ietf.org/html/draft-nottingham-http-link-header-06#section-6.2 > > If I were crawling for service capability documents, the inclusion of a type > attribute for links would be most helpful. Is there an internet media type > specified for OWS capabilities? I'd fetch and process these docs regardless > of the link rel attribute. > > Sean > > On Jul 25, 2009, at 8:52 PM, Stefan Keller wrote: > >> Yes, "web of services" sounds good - but connected to the general web. >> This is why I'm in favor of not only extending GetCapabilities but also >> >>> 1. extending robots.txt (see [1]) >>> 2. extending links/META tags in HTML ([1]) >> >> So I mostly agree with you but are unsure why you don't comment on >> proposal 1. and 2.: you agree extending these three "protocols"? >> >> Put yourself into the situation of a so called focussed webcrawler: >> How do you guess which link to follow in the general web without these >> "see" and "see also" links? >> >> Yours, Stefan >> >> 2009/7/23 Sean Gillies <[email protected]>: >>> >>> 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 . >>>> >>>> _______________________________________________ >>>> Geowanking mailing list >>>> [email protected] >>>> http://geowanking.org/mailman/listinfo/geowanking_geowanking.org >>> >>> -- >>> Sean Gillies >>> Software Engineer >>> Institute for the Study of the Ancient World >>> New York University >>> >>> >>> _______________________________________________ >>> Geowanking mailing list >>> [email protected] >>> http://geowanking.org/mailman/listinfo/geowanking_geowanking.org >>> > > -- > Sean Gillies > Software Engineer > Institute for the Study of the Ancient World > New York University > > > _______________________________________________ > Geowanking mailing list > [email protected] > http://geowanking.org/mailman/listinfo/geowanking_geowanking.org > _______________________________________________ Geowanking mailing list [email protected] http://geowanking.org/mailman/listinfo/geowanking_geowanking.org
