[OSM-dev] Representing differences between sets of OSM data

[Jon Burgess]

On Mon, 2007-08-20 at 13:16 +0100, 80n wrote:
> Would it be helpful if non-standard extensions to the xml file made
> proper use of xml namespaces?  It would prevent trouble in the future
> with conflicting and misinterpreted attributes.

It might be handy to add <bound ...> like JOSM does for downloads via
the map API to indicate the original download bounding box. This gives
an indication about how much of data is 'complete' and how much is due
to ways which stretch outside of the requested bounding box but may not
be complete (if the data is used to render a map, for example).

> Of course, an agreed diff format would not be an extension and so
> would not need to use a distinct namespace. 
> 
Currently each of the diff application uses something other then <osm>
at the top level and should not get parsed by accident. JOSM however
does claim to be a valid <osm> file, so yes it could use a namespace or
emit <josm> files. 

	Jon