- From: Vun Kannon, David <dvunkannon@kpmg.com>
- Date: Tue, 19 Jun 2001 10:53:23 -0400
- To: "'www-xml-linking-comments@w3.org'" <www-xml-linking-comments@w3.org>
The XLink spec says that arcs in extended links must be unique over the pair (from, to). It is as if the arcs were rows in a relational database, and (from, to) was the key. I think it would be helpful if the key was variable, to include user attributes and especially arcrole. In my application of XLink for the next version of XBRL (Extensible Business Reporting Language), there are many times when two locators are joined by several arcs with different arcroles. The way the spec is written today, I believe that I have to create several extended links, basically one for each arcrole, in order to maintain uniqueness over (from, to). This forces a duplication of the locator definitions. It is also possible that uniqueness can only be enforced over a combination of XLink attributes and user attributes (or even broader definitions of keys to include element content as in XML Schema). My request is that XLink allow a broader definition of the arc uniqueness constraint than is currently written in the spec. Cheers, David vun Kannon Specification WG Co-chair, XBRL ***************************************************************************** The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this email are subject to the terms and conditions expressed in the governing KPMG client engagement letter. *****************************************************************************
Received on Tuesday, 19 June 2001 10:53:42 UTC