[DDI-SRG] candidate draft 10 revisited (URNs) (fwd)

[Wendy Thomas]

here is a clear version of the example

Wendy L. Thomas                          Phone: +1 612.624.4389
Data Access Core Director		 Fax:   +1 612.626.8375
Minnesota Population Center              Email: wlt at pop.umn.edu
University of Minnesota
50 Willey Hall
225 19th Avenue South
Minneapolis, MN 55455

---------- Forwarded message ----------
Date: Wed, 8 Aug 2007 11:25:02 -0400
From: Sanda Ionescu <sandai at umich.edu>
To: Wendy Thomas <wlt at pop.umn.edu>
Cc: Mary Vardigan <vardigan at umich.edu>
Subject: RE: candidate draft 10 revisited (URNs)

OK,sure, tomorrow should be fine.
I can see that the indentations in my example have been lost -- I hope
you can still make sense of them.
Actually, I copied it in TextPad and will attach it to this message,
just don't open in Word please.
Thanks
Sanda.


Sanda Ionescu
ICPSR
University of Michigan
P.O. Box 1248
Ann Arbor, MI 48106

Phone, Fax: 734-615-7890
-----Original Message-----
From: Wendy Thomas [mailto:wlt at pop.umn.edu]
Sent: Wednesday, August 08, 2007 11:14 AM
To: Sanda Ionescu
Cc: Mary Vardigan
Subject: Re: candidate draft 10 revisited (URNs)

Sanda,

Thanks for the detailed example. I'll send you the URNs as requested
along with explanations. I may not get to this until tomorrow after the
TIC meeting. The questions you are raising about the URN construction
will vastly improve the User Manual in this area.

Wendy


On Wed, 8 Aug 2007, Sanda Ionescu wrote:

> Wendy,
> I appreciate your former response(s) on URNs, but I feel I need
> something more concrete.
> So I will give you an example.
>
> ICPSR (maintaining agency) has 2 studies:
>
> 1. StudyUnit_A (unique ID per ICPSR), with:
>         LogicalProduct_1 (unique ID only within StudyUnit_A)
>             VariableScheme_1 (unique ID only within LogicalProduct_1
> of
> StudyUnit_A)
>                 Variable_V1 (unique ID only within VariableScheme_1 of
> LogicalProduct_1 of StudyUnit_A)
>        LogicalProduct_2 (unique ID only within StudyUnit_A)
>             VariableScheme_1 (unique ID only within LogicalProduct_2
> of
> StudyUnit_A)
>                 Variable_V1 (unique ID only within VariableScheme_1 of
> LogicalProduct_2 of StudyUnit_A)
>
> 2. StudyUnit_B (unique ID per ICPSR), with:
>         LogicalProduct_1 (unique ID only within StudyUnit_B)
>             VariableScheme_1 (unique ID only within LogicalProduct_1
> of
> StudyUnit_B)
>                 Variable_V1 (unique ID only within VariableScheme_1 of
> LogicalProduct_1 of StudyUnit_B)
>         LogicalProduct_2 (unique ID only within StudyUnit_B)
>             VariableScheme_1 (unique ID only within LogicalProduct_2
> of
> StudyUnit_B)
>                 Variable_V1 (unique ID only within VariableScheme_1 of
> LogicalProduct_2 of StudyUnit_B)
>
> The point of the examples above is to show that logical product,
> variable scheme and variable have the exact same IDs, which are unique

> only within the uppermost level wrapper, but not "per se".
>
> So, the question is, how do I build the URN for variable?
> Wendy, could you build a URN for any of the variables above and send
> it over? That would be most helpful.
>
> Thanks
> Sanda.
>
> Sanda Ionescu
> ICPSR
> University of Michigan
> P.O. Box 1248
> Ann Arbor, MI 48106
>
> Phone, Fax: 734-615-7890
>
>
>

Wendy L. Thomas                          Phone: +1 612.624.4389
Data Access Core Director		 Fax:   +1 612.626.8375
Minnesota Population Center              Email: wlt at pop.umn.edu
University of Minnesota
50 Willey Hall
225 19th Avenue South
Minneapolis, MN 55455
-------------- next part --------------
ICPSR (maintaining agency) has 2 studies:
 
1. StudyUnit_A (unique ID per ICPSR), with:
         LogicalProduct_1 (unique ID only within StudyUnit_A)
             VariableScheme_1 (unique ID only within LogicalProduct_1 of StudyUnit_A)
                 Variable_V1 (unique ID only within VariableScheme_1 of LogicalProduct_1 of StudyUnit_A)
        LogicalProduct_2 (unique ID only within StudyUnit_A)
             VariableScheme_1 (unique ID only within LogicalProduct_2 of StudyUnit_A) 
                 Variable_V1 (unique ID only within VariableScheme_1 of LogicalProduct_2 of StudyUnit_A)
 
2. StudyUnit_B (unique ID per ICPSR), with: 
         LogicalProduct_1 (unique ID only within StudyUnit_B)
             VariableScheme_1 (unique ID only within LogicalProduct_1 of StudyUnit_B)
                 Variable_V1 (unique ID only within VariableScheme_1 of LogicalProduct_1 of StudyUnit_B)
         LogicalProduct_2 (unique ID only within StudyUnit_B) 
             VariableScheme_1 (unique ID only within LogicalProduct_2 of StudyUnit_B) 
                 Variable_V1 (unique ID only within VariableScheme_1 of LogicalProduct_2 of StudyUnit_B)
 
The point of the examples above is to show that logical product, variable scheme and variable have the exact same IDs, which are unique only within the uppermost level wrapper, but not "per se".
 
So, the question is, how do I build the URN for variable?