[tm-pubsubj-comment] RE: [topicmaps-comment] referring to a topic fromoutside a TM -- PURL

Title: RE: [topicmaps-comment] referring to a topic from outside a TM -- PURL

[Mary Nishikawa]

> The question is, do 

> we really need to be taken  directly to the anchor in the file? Isn't it 

> enough to be taken to the file containing the published subject? In 

> this case, it may be a good idea to have the metadata near the top of the 

> file, to make it a little easier for the person looking for this information.

See what just has been recommended by PubSubj:

(http://www.oasis-open.org/committees/tm-pubsubj/docs/recommendations/psdoc_04.htm)

"4.4.1 - Every PS Indicator in a PS DocSet shall be identified by, and retrievable through an unique canonical URI.

This canonical URI is the corresponding PS Identifier, uniquely defined in the PS DocSet namespace."

Note: ***Every*** PS Indicator, not only the whole set.

Regarding http://www.oasis-open.org/committees/tm-pubsubj/docs/mni/psi-unspsc-71.htm#010295,

I wonder how many lines are in this file. If you are just directed to the top, the only chance to find #010295 is by inspecting the (X)HTML code to find that anchor. 

> No, PURLs cannot be bookmarked, but do we need a bookmarking capability for 

> published subjects?

A URI is a URI is a URI. If we provide a canoical URI, anybody should be able to do anything he is used to with a URI, including stting bookmarks or copying an URL from the browsers URL field into a mail to a colleague, etc.... 

> The most important requirement for published subjects I think is this, to 

> have a URL that is persistent so that someone who is using my PSIs two 

> years from now will be able to merge them with their own. 

It's not only for merging. There will be engines that want to process a single subject's identity on the fly. We must not only think about some engaged taxonimist people who want to spend a week or so reading all the PSI set.

> It would be very 

> nice if we could resolve the URL to see who the publisher is, and find out 

> other pertinent information. If a company or organization can guarantee the 

> persistence of their URL, then they would not need to register with PURL. 

> Others who cannot, may want to use PURL.

May be the coming OASIS member section may provide a persitistent *hosting* (not redirection) of PSI sets. This would work.

Cheers!

Thomas Bandholtz 

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