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Re: Is CVS A Practical Means to Manage XML Versions In AProduc

• From: Andrew Welch <andrew.j.welch@gmail.com>
• To: Ghislain Fourny <gfourny@inf.ethz.ch>
• Date: Mon, 19 Sep 2011 15:41:48 +0100

On 19 September 2011 15:15, Ghislain  Fourny <gfourny@inf.ethz.ch> wrote:
> Hi Andrew,
>
> Sure. In the XML Time Machine, the XDM (data model) is augmented with an additional dimension: time. This means that a node (in the XDM spacetime) is identified with two coordinates:
>
> 1. a reference URI
> 2. a version URI
>
> The reference URI corresponds to the concept of node identity in the XDM specification. A node that evolves according to the XQuery Update specification (meaning that its accessors are modified, e.g., children added/removed, node renamed) corresponds in the XML Time Machine to a series of nodes that share the same reference URI, but have different version URIs. Such a series of nodes is called a node timeline.
>
> Using time axes means navigating within a timeline. Given a node in version 10, it is possible to get the "same" node in version 5. The concept of node identity in the XDM specification allows to give a meaning to "same".
>
> Does it make sense?

ah ok - so provided the document is only modified using XQuery Update
then you can track the changes over time?




-- 
Andrew Welch
http://andrewjwelch.com

• Follow-Ups:
  • Re: Is CVS A Practical Means to Manage XML Versions In AProduction Environment
    • From: "Ghislain Fourny" <gfourny@inf.ethz.ch>

• References:
  • Is CVS A Practical Means to Manage XML Versions In A Production Environment
    • From: "Len Bullard" <cbullard@hiwaay.net>
  • RE: Is CVS A Practical Means to Manage XML Versions In A Production Environment
    • From: "David Lee" <dlee@calldei.com>
  • Re: Is CVS A Practical Means to Manage XML Versions InA Production Environment
    • From: "Johannes.Lichtenberger" <Johannes.Lichtenberger@uni-konstanz.de>
  • Re: Is CVS A Practical Means to Manage XML Versions In AProduction Environment
    • From: "Ghislain Fourny" <gfourny@inf.ethz.ch>
  • Re: Is CVS A Practical Means to Manage XML Versions In AProduction Environment
    • From: Andrew Welch <andrew.j.welch@gmail.com>
  • Re: Is CVS A Practical Means to Manage XML Versions In AProduction Environment
    • From: "Ghislain Fourny" <gfourny@inf.ethz.ch>