Patrick-

There are some things in MODS that are close to addressing this problem, for 
example you could create a part wrapper around each file, but my reading of the 
docs says that may not be the intended use of the part element (depending in 
part on whether the files represent different physical objects or not).  The 
other strategy used to coordinate elements in MODS is the altRepGroup attribute 
(where the location, physicalDecription and accessCondition elements for one 
file would all get the same altRepGroup attribute value).  But that seems to be 
for multiple versions of the same content (e.g., titles in different 
translations/etc., internal note and link to external HTML version of the same 
note, etc.), which doesn't necessarily seem like a good fit here.  But you may 
be able to use one of those strategies.

At UC San Diego, we use our own locally-developed model, based in part on MODS. 
 One of the things we've added is a component class within a digital object to 
handle any kind of structure, including multiple files, nested hierarchy, etc.  
When we export to METS, we would make one MODS record for the object, and then 
a separate MODS document for each component, and then link them using the METS 
structmap.  To stay completely within MODS, you could also use relatedItem to 
link multiple MODS records.

For a better encoding of the restrictions and embargo dates, you may want to 
add PREMIS, which has a better vocabulary for describing those things.

-Esme
--
Esme Cowles <escow...@ucsd.edu>

"Necessity is the plea for every infringement of human freedom. It is the
 argument of tyrants; it is the creed of slaves." -- William Pitt, 1783

On 09/6/2013, at 3:11 AM, Patrick Hochstenbach <patrick.hochstenb...@ugent.be> 
wrote:

> Hi,
> 
> I need some advise on creating MODS records for our institutional repository. 
> In particular I wonder how best to express the different access restrictions 
> on digital files when a record contains more than one full-text file. E.g. 
> what we do now is write something like:
> 
> <location>
>  <url 
> displayLabel="ruimtelijk_bestuursrecht_Geert_13-12-10.pdf">https://biblio.ugent.be/publication/1927382/file/1927384</url>
> </location>
> <physicalDescription>
>  <internetMediaType>application/pdf</internetMediaType>
> </physicalDescription>
> <accessCondition type="restrictionOnAccess">restricted (changes to open on 
> 2016-01-01)</accessCondition>
> 
> and this repeated for every full-text file in the record
> 
> I don't like this solution because:
> 
> 1. This make the MODS context-sensitive: the order of local, physical, 
> accessCondition has a meaning (the first accessCondition is for the first 
> location, the second accessCondition ois for the second loaction etc etc).
> As I understand the order of elementents in MODS shouldn't matter.
> 2. Access conditions and embargo's are free-text!
> 
> Are there best practices we should use?
> 
> Greetings from Belgium
> Patrick
> 
> Ghent University Library

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