 |
 |
Here is some additional related information on DNS-based resolution: The Dynamic Delegation Discovery System (DDDS, described in RFC 3401-5) is mentioned in the IETF article. The phone number resolution service of voice over IP (VoIP) uses a system which is based on DDDS. ENUM/E164 is the approach to map telephone numbers to IP. This system uses DNS with the Internet domain below e164.arpa (arpa is another top-level domain like com). E164 can be looked up in the DNS. This resolution system of VoIP can serve as one model for URN resolution services. It is said that the resolution of RFIDs (Radio-frequency identification) was the motivation of DDDS (RFC 3401-5). RFID resolution cannot be looked up in the DNS because it seems to work with a walled garden concept. The Data Documentation Initiative (DDI) is using extensively URNs for identification of DDI objects. The DDI URNs have an hierarchical structure. We are currently in the process to plan and setup a DNS-based resolution system for DDI URNs. It will resolve the agency ID of a DDI URN to related DDI services. Here is a presentation on this approach: DDI3 Uniform Resource Names: locating and providing the related DDI3 objects http://www.ciser.cornell.edu/IASSIST/program/pres/b4/IASSIST2010%20B4%20-%20DDI3%20Uniform%20Resource%20Names%20-%20Joachim%20Wackerow.pptx Information on DDI http://www.ddialliance.org/ Achim Matt Jones wrote: > Given our need for, and reliance on, globally unique identifiers in data > federation efforts, I found the linked article very interesting. I've > always been perplexed as to why the URN solution has not been taken up, and > instead several very similarly scoped approaches like LSRN, Handle, DOI, > LSID, and ISNI have arisen and compete for mindshare. This article proposes > that the complexity of the resolution stack hindered adoption for URNs. > This would also explain why enthusiasts for using http URLs as identifiers > have gotten traction -- resolution is simple (today) with http, overriding > the (real, but delayed) need for location-independent identifiers. > > http://www.isoc.org/tools/blogs/ietfjournal/?p=1705 > > I found this article interesting, especially in light of the posting on this > list this morning about the NISO midterm report on the effort to create a > standard for Institutional Identifiers -- to me this seems like a > specialized case of a much more general and ubiquitous problem. > > Matt > -- GESIS - Leibniz Institute for the Social Sciences Department: Monitoring Society and Social Change Unit: Social Science Metadata Standards Visiting address: B2 1, 68159 Mannheim, Germany Postal address: P.O. Box 122155, 68072 Mannheim, Germany Phone: +49 (0)621 1246 262 Fax: +49 (0)621 1246 100 E-mail: [log in to unmask] www.gesis.org/en/institute/