[OSM-talk] iD invents nosquare=yes for buildings which should not be squared

Yuri Astrakhan yuriastrakhan at gmail.com
Fri May 10 20:17:37 UTC 2019

On Fri, May 10, 2019 at 3:39 PM Yves <yvecai at mailbox.org> wrote:

> Some validation tools, like Osmose, make great efforts to maintain a
> 'false positive' database.

If the same validation is done by multiple tools, they need to share the
"false positive" data, otherwise only one tool would know not to change
something, while another tool will encourage the user to make the same

So we either have to set up an OSM shadow database that contains all
exceptions, e.g. "object NNNN is exempt from validation XXXX", or this data
should be stored in the object itself, which seems to be a far more robust
approach (same data store allows data consistency / versioning / user
management / tracking / consistency between tools / same processing
pipeline / ...).

If the objection to this is that users don't want to see junk data, I agree
-- but we could simply dedicate a key namespace to validations, and hide it
by default in JOSM and iD.
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