> Can anyone give me an idea if any/many/all (ILS) Z implementations
> have implemented the holdings information?
> 
> Is there a way of testing this using a client such as yaz (e.g. a
> worked example of seeing holdings via Z)

Voyager certainly can - see example below.

I've also got some perl that pulls back opac-xml using the ZOOM module. If that's of any use, let me know off-list.

Ben

Z> open nemesis.kent.ac.uk:7090
Connecting...OK.
Sent initrequest.
Connection accepted by v3 target.
ID     : 34
Name   : Voyager LMS - Z39.50 Server
Version: 2007.0.4
Options: search present
Elapsed: 0.698674

Z> base voyager
Z> format opac

Z> find 0714120766
Sent searchRequest.
Received SearchResponse.
Search was a success.
Number of hits: 1
records returned: 0
Elapsed: 0.030849

Z> show 1
Sent presentRequest (1+1).
Records: 1
[VOYAGER]Record type: OPAC
Record type: USmarc
00763cam  2200229 a 4500
001 318575
005 20080123143630.0
008 010720s1991    xxkabc              eng  
015    $a 0527672 $a 0527673 $a 0527674 $a 0527675 $a 0686148 $a F210884
020    $a 0714120766 (pbk.)
035    $9 8000527672
050  4 $a N 5760
100 1  $a Walker, Susan.
245 10 $a Roman art / $c Susan Walker.
260    $a London : $b British Museum Press for Trustees of the British Museum, $c 1991 $g (repr. 1994).
300    $a 72 p. : $b ill. (some col.), col. maps ; $c 22 cm.
500    $a Includes bibliographical references (p. 71) and index.
561    $a Copy F210884 from the collection of Colin Renfrew.
650  0 $a Art, Roman.
710 2  $a British Museum.
990    $a CL335
990    $a CL609

Data holdings 0
typeOfRecord: x
encodingLevel: 3
receiptAcqStatus: 0
generalRetention: 8
completeness: 4
dateOfReport: 000000
nucCode: TCTCOWL
localLocation: Templeman - Core Text Collection [1 Week Loan]
callNumber: N 5760
circulation 0
 availableNow: 1
 itemId: 442858
 renewable: 0
 onHold: 0
circulation 1
 availableNow: 1
 itemId: 800513
 renewable: 0
 onHold: 0
Data holdings 1
typeOfRecord: x
encodingLevel: 3
receiptAcqStatus: 0
generalRetention: 8
completeness: 4
dateOfReport: 000000
nucCode: TMORD
localLocation: Templeman - Main Collection [Ordinary Loan]
callNumber: N 5760
circulation 0
 availableNow: 1
 itemId: 442855
 renewable: 0
 onHold: 0
 temporaryLocation: Medway - Tonbridge [Ordinary Loan]
circulation 1
 availableNow: 1
 itemId: 442856
 renewable: 0
 onHold: 0
 temporaryLocation: Medway - Tonbridge [Ordinary Loan]
circulation 2
 availableNow: 1
 itemId: 442857
 renewable: 0
 onHold: 0
 temporaryLocation: Medway - Tonbridge [Ordinary Loan]
Data holdings 2
typeOfRecord: x
encodingLevel: 4
receiptAcqStatus: 0
generalRetention: 8
completeness: 1
dateOfReport: 000000
nucCode: XTONUKCORD
localLocation: Medway - Tonbridge [Ordinary Loan]
callNumber: N 5760
circulation 0
 availableNow: 1
 itemId: 692092
 renewable: 0
 onHold: 0
nextResultSetPosition = 2
Elapsed: 0.013220