[OSM-talk] Recording completeness

[Chris Morley]

I think there are two aspects here, both important.

Recording stubs is a way of reminding oneself (and others) of where 
there is more to do. I agree that it should be encouraged.

A completeness boundary is is a message to users of the data. Nestoria 
use the Isle of Wight because it is complete. Some other parts of the 
country are just as complete but the boundaries of the completed area 
are less obvious. We need to make them explicit.

Chris

Dan Moore wrote:
> Chris, talk,
> 
> i been thinking, based on SOTM talks, of the importance of stubs w.r.t. 
> completeness - that is the marking of the starts of side roads and tagging them 
> as 'incompletely mapped, continues on down that way some'.
> 
> in extension of what you're saying, in areas where _all_ stubs were mapped:
> (i) a completeness boundary could be derived
> (ii) we (and, importantly, others) can tell where to complete the map
> (iii) with appropriate rendering, the incomplete map is more useful to end users
> 
> to put it another way, in trying to complete our maps it's much more powerful to
> survey fewer roads and capture all stubs, than it is to complete as many roads
> as possible, which is perhaps the instinct (what do people do now?).  it may
> even be worthwhile to go out and retro-stub...
> 
> in summary it's more effort to capture all stubs but, if standard practice, i think 
> it would be a useful tool in tracking and gaining completeness.
> 
> cheers, dan.
> 
> ----- Original Message ----
> 
>> From: Chris Morley <c.morley at dsl.pipex.com>
> 
>> Cc: OSM-Talk Openstreetmap <talk at openstreetmap.org>
> 
>> Sent: Monday, July 16, 2007 2:59:27 PM
> 
>> Subject: [OSM-talk] Recording completeness
> 
> 
>> Completeness boundaries would be ways in the the main data base so that 
> 
>> contributors can push the boundaries on a day to day basis. A boundary 
> 
>> [...]
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