[Dspace-general] [Dspace-tech] DSpace `Dublin Core' | Date Issued | Date Range | How to represent

[instituto A.C.Jobim]

Hi Richard
I think using the date.issued field quite confusing because thats  
what DSpace automaticly uses when you dont check the "item has been  
published before" box.
At the Institute here we used date.created and maybe I will change it  
for simply date.
Researchers here use sometimes brackets or parentesis to indicate if  
a date is a guess of the researcher and all these things break the  
browse by date page and make the sorting alleatory. We finally  
decided to treat this field as text and not date (in dspace.cfg) so I  
remove the brackets in the field sort_date and everybody uses the  
YYYY-MM-DD format so periods like 1960-1970 will be sorted correctly  
and the browse page will not break.
I hope this helps
Paulo Jobim

Em 12/06/2007, às 07:34, Richard MAHONEY escreveu:

> Hello Scott,
>
> Thanks for your note.
>
> On Tue, 2007-06-12 at 12:06, Scott Yeadon wrote:
>> Hi Richard,
>>
>> It's up to you how you represent your values, you could use the DCMI
>> Period or something simple such as "1930-1940". We tend to have the
>> latter since that's what our users typically enter. The batch import
>> process won't parse the values, as long as the document is valid  
>> XML the
>> values will be accepted.
>
> Granted that using something such as:
>
> <dcvalue element="date" qualifier="issued">1964-1970</dcvalue>
>
> in one's `dublin_core.xml' file seems practical and expedient, on my
> system at least -- DSpace-1.4.0 -- such an approach breaks DSpace's
> `Browse by Title', `Browse by Date', and the offending item's `Brief
> View'.
>
> This is the reason I first asked the lists for details of how one
> should _correctly_ represent a date range in the DSpace
> `dublin_core.xml' file. Using `1964-1970' and so on simply does not
> seem to work.
>
> I have put together a series of screenshots to indicate the issues:
>
> http://indica-et-buddhica.org/sections/repositorium-preview/known- 
> issues/dspace-item-date-ranges
>
> As you will see, I am - unhappily - coming to the conclusion that
> DSpace does not support item date ranges at all. It is also becoming
> clear that the lack of genuine validation by the item importer can
> easily lead to the widespread corruption of ones metadata. I hope I am
> wrong as these would be serious deficiencies.
>
>
> Best regards,
>
>  Richard Mahoney
>
>
>> Scott.
>>> Message: 3
>>> Date: Fri, 08 Jun 2007 12:08:16 +1200
>>> From: Richard MAHONEY <r.mahoney at iconz.co.nz>
>>> Subject: [Dspace-general] DSpace `Dublin Core' | Date Issued | Date
>>> 	Range |	How to represent
>>> To: DSpace Tech <dspace-tech at lists.sourceforge.net>,	DSpace General
>>> 	<dspace-general at mit.edu>
>>> Message-ID: <1181261296.8680.21.camel at proliant>
>>> Content-Type: text/plain
>>>
>>> Dear List Members,
>>>
>>> I am in the process or preparing material for bulk import and have
>>> again encountered and issue that I was inclined to gloss over  
>>> last time
>>> it arose: the format of the DSpace Dublin Core Date Elements,
>>> Qualifiers, and particularly, the Values.
>>>
>>> What exactly is the required Value format and is it configurable?
>>> Simple date Values such as the following present no difficulty:
>>>
>>> <dcvalue element="date" qualifier="issued">1970</dcvalue>
>>>
>>> The trouble for me -- and this situation would arise often for many
>>> projects -- is how to correctly represent date ranges, for e.g.,  
>>> date
>>> issued, 1964 to 1970. Which Value format should should be used to
>>> represent a date range in DSpace DC? Some DSpace version of the
>>> W3C-DTF/ISO 8601 scheme?
>>>
>>>  http://dublincore.org/documents/2000/07/28/dcmi-period/
>>>
>>>
>>> Best regards,
>>>
>>>  Richard Mahoney
>>>
>>>
>>>
> -- 
> Richard MAHONEY | internet: http://indica-et-buddhica.org/
> Littledene      | telephone/telefax (man.): +64 3 312 1699
> Bay Road        | cellular: +64 27 482 9986
> OXFORD, NZ      | email: r.mahoney at indica-et-buddhica.org
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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