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gils: RE: GILS Profile Version 2 Changes

gils: RE: GILS Profile Version 2 Changes

RE: GILS Profile Version 2 Changes

Eliot Christian (echristi@usgs.gov)
Thu, 19 Sep 1996 05:17:08 -0400 

Message-Id: <2.2.32.19960919091708.00a007ec@isdmnl.wr.usgs.gov>
Date: Thu, 19 Sep 1996 05:17:08 -0400
To: gils@cni.org
From: Eliot Christian <echristi@usgs.gov>
Subject: RE: GILS Profile Version 2 Changes


Hi Fay

My note to the list was only a high-level summary. Please look at the
profile document itself to check out the actual changes.


At 06:02 PM 9/18/96 -0700, you wrote:
> [...]
> There were also a number of e-mails exchanged regarding the definition 
> and structure of Controlled Subject Index and the definition of Subject 
> Thesaurus and Controlled Term. I think there is still a concern about 
> making Controlled Term a subelement of Subject Thesaurus.  I will 
> telephone you to discuss this further.

I thought neither of us could see a way to change the current structure
without making it difficult to address Thesaurus separately.

I just got an e-mail from the geographic folks who are still concerned 
about having the Thesaurus repetaed with each term as it is done in MARC 
and the Geospatial Profile. So, this area is still open. 


> In an earlier e-mail I suggested a number of minor changes to align Cross 
> Reference Linkage with Available Linkage. Will you be incorprating the 
> following:
> 
> 1. Revised definition for Cross Reference Linkage:
> 
>  Cross Reference Linkage (Repeatable):  This subelement is a grouping of
>  subelements that together provide information needed to access the cross
>  referenced object.  It is composed of the subordinate elements Linkage
>  Type and Linkage.  Cross Reference Linkage is repeated for each new
>  instance of Linkage Type.

I hadn't used this wording exactly, but I've just now changed it again 
to use your words.


> [...]
> This is such a condensed summary of the change I'm not sure I've 
> understood it.  Is this what was agreed to:
> 
> Time Period (Repeatable)
>     Time Period Structured (Repeatable)
>            Start Date
>            End Date
>      Time Period Textual (Repeatable)
>             Start Date
>              End Date

I've used "beginningDate" and "endingDate" as tags because those are 
the tags already in use in the Geospatial Profile. Note also that we 
have only a date although we call it "time". Shouldn't we also say 
that the format is ISO 8601 as it is for Date Of Publication Structured? 
If we want time, the format would be YYYYMMDDTHHMMSS, where "T" is 
literally a capital "T".

I think we may also want to say which of the two dates should be used 
when the intent is to indicate just one date.

Eliot Christian, US Geological Survey, 802 National Center, Reston VA 20192
echristi@usgs.gov  Office 703-648-7245  FAX 703-648-7069  Home 703-476-6134

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