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Subject: RE: [ubl-psc] Status of issues raised in November 2010


At 2011-02-17 09:21 +0000, Georg Birgisson wrote:
>What are the use  cases where an area might be 
>specified in the current UBL documents?

Not sure what you mean by "current UBL 
documents".  In UBL 2.0 the location coordinate 
is only in Address and only as an optional 
singleton.  It remains an optional singleton in UBL 2.1.

One example I heard for UBL 2.1 is the need to 
specify a region of a wharf.  Using GPS 
coordinates one could specify that a delivery be 
made to a particular area within a location more generally identified.

What comes to my mind is aggregates.  A delivery 
of aggregates may need to be at a location not 
easily specified in any way other than by an area specified by points.

One example of an ambiguity is what to do with 
exactly three points?  That uniquely defines a 
triangle and uniquely defines a circle:  there is 
only one triangle with apexes at the three points 
and there is only one circle that goes through 
all three points.  Which is it to be?  The 
description field can be used, or two trading 
partners can use business rules in their 
agreement to agree on how to interpret the points.

I hope this helps.

. . . . . . . . . . . Ken

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