[Talk-GB] Why I'm not currently using OS Opendat as a source WAS The last 2%

[David Groom]

----- Original Message ----- 
From: "Shane Reynolds" <shane28r at gmail.com>
To: <talk-gb at openstreetmap.org>
Sent: Tuesday, August 17, 2010 2:09 PM
Subject: Re: [Talk-GB] The last 2%


> Hi,
>
> I am the developer who works on a number of products including OSM 
> Analysis
> for ITO.
>
> I am slightly confused about making the OS Locator box a dashed box if the
> not:name tag is present. When we do the processing if any street is found
> with the not:name tag matching an OS Locator street then these should not 
> be
> flagged in the stats nor should they be drawn on the map. Are you saying
> that this is not the case and they are still appearing? If this is true 
> then
> possibly there is a bug that I may want to address (we are usually a day
> behind the updated planet file so possibly its something to do with that?)
>
> With regard to getting the figures down (in slight fear of being flamed as 
> I
> am a very novice mapper) - with apostrophes, if the road sign has an
> apostrophe then I would say the apostrophe should be in OSM and if it is 
> not
> then it is correct to flag it as a difference. However if the road sign 
> does
> not have an apostrophe and OS Locator does then probably the road should
> have a not:name tag added with the apostrophe version of the name. This
> would remove any apostrophe issues. With regard to rural roads - if they
> have no road signs is it not better to use the OS Locator name rather than
> have no name at all as I think in general OS Locator has been proved to be
> pretty accurate? (apologies if in my ignorance I do not know that there is 
> a
> good reason not to do this).

There is one pretty good reason.

OS opendata is released under a CC-BY-SA licence

There is a pretty strong reason to believe that CC-BY-SA data is not 
compatible with the new Contributor Terms  & ODbL

If you have added any data based on the OS opendata therefore you can not 
agree to the contributor terms.

If you can't agree to the contributor terms then at some point in the future 
you will no longer be able to contribute to OSM.

Therefore, for me,  use of OS Opendata is one more factor which will 
complicate my ability to continue to contribute to OSM.once agreeing to the 
CT becomes mandatory

Note the above analysis is based on the current situation and assumes:

(1) that the OS will not change their licence so it is compatible with 
Contributor Terms  & ODbL
(2) OSM does not change Contributor Terms  & ODbL so it is compatible with 
CC-BY
(3) The Contributor Terms are not changed to allow a user to create a new 
account and start mapping afresh

As this isn't the legal mailing list , if anyone wants to debate these 
points I suggest they raise them on legal-talk mailing list or,

http://wiki.openstreetmap.org/wiki/Talk:Open_Database_License/Contributor_Terms/Open_Issues

David
>