There is versioned data model for GeoServer and a WFS extension that
supports it. There is a crowdsourcing demo wrapping it up on open
layers if you are wanting to try it out. I cannot find the link for
you at the moment (site is under maintenance).

For the java developer there is an API available here


On Thu, Jul 30, 2009 at 4:21 AM, Abhay<> wrote:
> Hello All,
> I wish to know, is there any system other than ESRI ArcSDE that supports
> versioning of GeoSpatial Data.
> If so could anyone point me to a possible solution in opensource and apart
> from write my own custom application/Workflow from scratch.
> I have tried google for solution but am not able make or break any idea to
> solve this, so with a confused mind I ask, could there be a possibility that
> SVN or any version control system (application/mechanics/functionality) be
> merged with PostgreSQL (Postgis) to create this solution.
> Rgds.
> Abhay.
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