[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Namespace name: better to use URN or URL?
Philosophically, I prefer a URN. As you say, it is clear what it is, and practically, the systems I work with don't color it blue and make it clickable; that is, it isn't a hyperlink. Practically, some of us are tool thralls and the tool vendors make that choice for us. We've debated it endlessly, but I think using a URL binds it to the web by using a system specific location identifier in the namespace, and that pollutes the namespace in situations where the information could be reused on non-Internet systems. One has to decide if the information is ever to be repurposed off the internet. When we had this argument some time ago, it came down to, do you ever plan to resolve it? If it is *really just a label*, no winking, no nudging but honest clean design, one has to choose for themselves and decide if http://anything really is a name or a location. Identity is not the horse you want to ride for that argument. Systems sit inside systems and that is the problem and solution to describing a namespace. Len http://www.mp3.com/LenBullard Ekam sat.h, Vipraah bahudhaa vadanti. Daamyata. Datta. Dayadhvam.h -----Original Message----- From: Roger L. Costello [mailto:costello@m...] Sent: Thursday, August 30, 2001 7:22 AM To: xml-dev@l... Subject: Namespace name: better to use URN or URL? Hi Folks, Is there any advantage to formulating a namespace name as a URN, vice formulating it as a URL? Example: urn:publishing:book versus http://www.publishing.com/book As I see it, - the advantage of formulating a namespace name as a URN is that it's easier to conceptualize a URN as a "name" and not a "location". - the advantage of formulating a namespace name as a URL is that the namespace "could" then have a dual purpose - it could serve both as a name and as a location to "something". I am ashamedly ignorant of RDDL, but I vaguely recall reading something about using a namespace URL to point to a RDDL document. Does RDDL enter into this issue? My impression is, A couple years ago there was a general feeling in the XML community that URNs were the preferred form for namespace names, but recently there seems to be a shift towards preferring URLs. Do you agree?
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|