[Koha] MARC scheme for item data

[paul POULAIN]

Larry Currie wrote:

>We're getting ready to load item data from a file into our MARC records,
>and I proposed that the following fields be added to each MARC record:
>
>945 b biblio.biblionumber  c biblioitems.biblioitemnumber
>
seems OK to me.

>946 a biblioitems.biblioitemnumber  b biblioitems.itemtype  c
>biblioitems.dewey
>
seems strange as 946 a = 945 c ? do you confirm or it's a keyboard mistake ?

>and for each copy or, in the case of multivolume works, each volume, a
>949 field with the following subfields:
>
>949 a items.itemnumber  b items.biblionumber  c items.multivolumepart  d
>items.biblioitemnumber  e items.barcode  f items.dateaccessioned   g
>items.homebranch  h items.price  i items.datelast seen  j items.issues
>k items.itemsnotes  l items.holdingbranch
>
Seems OK to me : every item field MUST be mapped to the same tag.
But the tag can be whatever you want.

>My question is, I came upon this scheme only because it seemed to pass
>the Check MARC test within the MARC Related section of version 1.9.0,
>but is this the optimal scheme to use?   I noticed that Paul Poulain has
>proposed that the 995 tag be used for the item data in conjunction with
>Biblio.pm and I can certainly make this change.  Am I correct in
>assuming that there will be one such field for each volume and copy of a
>work (i.e., that the 949s or 995s will be repeatable)?  What about the
>information I have chosen to go into 945 and 946 fields?  Is this
>appropriate?
>
The 995 tag has been proposed because it's something "recommended" in 
unimarc. But i repeat : the only thing needed shall be "all item fields 
in the same tag". any other problem is a bug !
Note that your try will be a very nice debugging test for us !

-- 
Paul POULAIN
Consultant indépendant en logiciels libres
responsable francophone de koha (SIGB libre http://www.koha-fr.org)