[OSM-talk] collateral damage (was: What the license change isgoing to do to the map)

john at jfeldredge.com john at jfeldredge.com
Thu Feb 10 13:54:52 GMT 2011


Also, if a particular user's changes are going to be rolled back, this needs to include not only undoing things they added or changed but also undoing deletions.

-------Original Email-------
Subject :Re: [OSM-talk] collateral damage (was: What the license change isgoing to do to the map)
From  :mailto:osm at inbox.org
Date  :Thu Feb 10 07:28:23 America/Chicago 2011


On Thu, Feb 10, 2011 at 8:20 AM, Anthony <osm at inbox.org> wrote:
> Here's what happened.  Grand plaza was mapped as one single building.
> I deleted that one building in order to map it as 3 separate
> buildings, because that's essentially what it is (3 buildings, with a
> shared roof/awning/whatever).  So when the reversion took place, the 3
> buildings were deleted completely).

Basically, the same thing that happened with Ehrlich Road, which was a
single road which I deleted to change into a dual carriageway.

This kind of stuff is going to happen constantly once you start
mass-deleting tens of thousands of accounts.  That's why the deletion
strategy needs to be set long long long before people are required to
decide whether or not to approve the switch.

This is something I've been saying for a long time, but I'm glad it
has finally been shown rather than just said.  The deletion of one
single user who didn't even edit that much, cascades through an entire
map (some of which has been fixed, but y'all have a *lot* more to go).

Maybe the 1,500 year plan is the way to go.  It could always be sped
up as y'all get better at cleaning up from the big mess you're making.

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John F. Eldredge -- john at jfeldredge.com
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