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Hmmm... I might have messed up with the terms. Please bear with me, making my first steps here.
The protocol is actually SRU, not the old style z39.50. Sorry...

> Date: Wed, 14 Oct 2009 10:01:26 +0100
> From: [log in to unmask]
> Subject: Re: Returning a "preview" of the searchRetrieve results, instead of the full items
> To: [log in to unmask]
> 
> The standard way to do this is using element-sets.  When you want to
> show a list of summary records, request element-set "b" (brief), and
> when you want to display a detailed record, request element-set "f"
> (full).
> 
> (By the way, Z39 is a working group within ANSI/NISO.  There are other
> Z39 standards, including Z39.2, MARC, and Z39.88, OpenURL.  So it's a
> very bad abbreviation to use for Z39.50.)
> 
> 2009/10/14 Eran gi <[log in to unmask]>:
> > Hello,
> >
> > In our application's built-in search engine, the search process includes 3
> > steps:
> > 1. The user executes a query
> > 2. A "preview" of the results is presented, containing the items' titles,
> > authors etc.
> > 3. When an item is selected, the complete record is presented to the user.
> > This way, the system does the relatively expensive task of gathering the
> > complete item record only upon demand.
> >
> > The z39.50 protocol consist of only two steps: searching and getting a list
> > of complete records. Due to the way our database is designed, converting our
> > native format to marcxml, for instance, requires an export operation, which
> > is quite heavy. Having to go through with that before the user can even be
> > sure the results are indeed what she was looking for could be quite a
> > burden.
> >
> > The only solution I could think of is supplying a non-standard record schema
> > in which only a few selected fields would be returned. Then, if the user
> > would like to get the complete records, one of the standard schemas would be
> > used. Does this comply with the spirit of z39? will the average client
> > understand the idea? is there a better way?
> >
> > Thanks,
> > Eran
> >
 		 	   		  
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