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gils: Re: Available Linkage, Cross Reference

gils: Re: Available Linkage, Cross Reference

Re: Available Linkage, Cross Reference

becky_perry@hq.dla.mil
Mon, 16 Sep 96 11:16:37 EST 

Date: Mon, 16 Sep 96 11:16:37 EST
From: becky_perry@hq.dla.mil
Message-Id: <9608168428.AA842898015@ccgw2.hq.dla.mil>
To: gils@cni.org
Subject: Re: Available Linkage, Cross Reference


I like this idea.  It makes good sense to me since I have found I can 
get the same information at different addresses and these fields would 
address this issue.

becky perry, HQ DLA CANP
<becky_perry@hq.dla.mil>


______________________________ Reply Separator _____________________________
> Subject: Available Linkage, Cross Reference
> Author:  gils@cni.org at ~GW2
> Date:    9/13/96 8:42 AM
>      
> I would like to return to the topic of Available Linkage which I 
> brought to the list in a message dated Aug. 21 and which I continued 
> with Eliot off-line.
>      
> Available Linkage:
>      
> The problem lies with the structure of this compound element and how 
> to couple Linkage Type and Link and have repeats .  What we propose is:
>      
> Availability (Repeatable)
>      Available Linkage (Repeatable)
>            Linkage Type (e.g. application /msword, Not repeatable) 
>            Linkage (URL)
>            Linkage (URL)
>     Available Linkage
>            Linkage Type (e.g. txt/html)
>            Linkage (URL)
>      
> Available Linkage is a repeatable grouping element and is composed of 
> the sub-elements Linkage Type which is not repeatable and Linkage which 
> is repeatable.  Available Linkage data element requires the provision of 
> Linkage and optionally Linkage Type.  It is possible to have more than 
> one Linkage for a particular Linkage Type, i.e. more than one server on 
> which this resource can be found. It is also possible to include one or 
> more Linkages even though Linkage Type is not provided.
>      
> For each new instance of Linkage Type, the Available Linkage element is 
> repeated.  This permits Linkage Type and Linkage to always be coupled.
>      
> For example:
>      
> (Document  abc  in html format available from two different servers) 
> Availability
>         Available Linkage:
>                Linkage type: txt/html
>                Linkage: http://www.tbs-ct.gc.ca/pubs/its. 
>                Linkage: http//www.nlc-bnc.ca/pubs/1234e.html
>      
> (same document  abc  as above but in MS Word format available from only 
> one server)
> Availability
>           Available linkage:
>           Linkage Type: application/msword
>           Linkage: http://www.tbs-ct.gc.ca/pubs/its/610/610se.doc
>      
> Definition:
>      
> The definition of Available Linkage should be changed to include at the 
> end of the current definition something like:
>      
> This subelement consists of the subordinate elements Linkage Type and 
> Linkage.  Available Linkage must be repeated for every new instance of 
> Linkage Type. 
>      
> Also, reverse the order of Linkage and Linkage Type in the Profile.
>      
> Cross Reference Linkage:
>      
> This restructuring can also be applied to Cross Reference:
>      
> Cross Reference (Repeatable)
>          Cross Reference Title (Not repeatable)
>          Cross Reference Relationship (Not repeatable) 
>          Cross Reference Linkage ( Repeatable)
>                    Linkage Type (Not repeatable)
>                    Linkage (New, Repeatable)
>      
> Cross Reference Linkage is a grouping element for the subelements Linkage 
> Type and Linkage.  For each new instance of Linkage Type, Cross Reference 
> Linkage is repeated.  Cross Reference Linkage must contain one or more 
> Linkage and optionally Linkage Type.
>      
> Definitions:
>      
> 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. 
>      
> Change Cross Reference Linkage Type to Linkage Type.  Definition 
> unchanged.
>      
> Add subordinate element  Linkage  after Linkage Type.
> Linkage:  This subelement provides the machine readable information needed 
> to perform this access. 
>      
> Is this OK with the GILS list members?
>      
> Fay
>      
> Fay Turner
> Information Technology Services
> National Library of Canada
>      
> e-mail:  fay.turner@nlc-bnc.ca
> tel:        (819) 994-6830

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