making sense of the hybrid super union catalogue in the information environment … gordon dunsire...
TRANSCRIPT
Making sense of the hybrid super union catalogue in the information
environment …
Gordon Dunsire
Centre for Digital Library Research
… some outcomes of the COPAC/Clumps continuing
interoperability project
Overview
CC-interop project Integrating SCONE with CAIRNS Union catalogues & interoperability Metadata confusion Some clarification
CC-interop project
Funded by JISC, May 2002 - Jun 2004 CURL OPAC (physical u.c.); CAIRNS,
M25, RIDING (distributed Z39.50 u.c., or ‘clump’)
CAIRNS and CDLR involved in Work Package B: Enhance the role of clumps (in the JISC Information Environment)
Work Package B
“Looking at the intelligent selection of targets in clumps utilising collection level descriptions based on dynamic landscaping”
Using the Scottish Collections Network (SCONE) to select sub-sets (“miniclumps”) of CAIRNS catalogues
Collection-level description
Metadata for a collection as a whole E.g. collector, location, education level
Can be used to search and identify collections by useful headings (“dynamic landscaping”) Place (physical location) Type (archive, library, museum, etc.) Subject …
“targets in clumps”
(Z39.50) catalogues But catalogues are collections of item-level
metadata So we can treat catalogues using cld
methods And what the catalogue describes is also a
collection Typically the total bibliographic holdings of a
library
“intelligent selection”
SCONE retrieval interface can be used to identify CAIRNS catalogues
Catalogues and their corresponding library collections have clds in SCONE
Library clds are related to clds for special sub-collections E.g. rare books, manuscripts, special
donations, etc.
SCONE/CAIRNS
SCONE and CAIRNS interfaces developed to link CAIRNS “static clumper” to SCONE Part-resourced by the SLIC SPEIR project
In operation User generates list of collections in SCONE System determines which are described by
available CAIRNS catalogues CAIRNS advanced search page displayed
with relevant targets pre-selected
Demonstration
http://scone.strath.ac.uk/service/index.cfm
Union catalogues
CC-interop was about interoperability between two types of union catalogue COPAC is a physical aggregated copy of
CURL member catalogues A clump is a virtual aggregation of
distributed (local) member catalogues Clump2clump (hyperclump) and
clump2COPAC interactions successfully demonstrated
COPAC in CAIRNS
COPAC Z39.50 target added to CAIRNS CURL includes National Library of
Scotland, University of Edinburgh … So CAIRNS includes duplicates of several
catalogues When COPAC added to CAIRNS,
corresponding clds added to SCONE Including “COPAC collection”
COPAC in SCONE
“COPAC collection” linked as parent or super-collection of each of the (Scottish) CURL library collections already in SCONE Not all Scottish CURL members are
necessarily CAIRNS targets Collection hierarchy can be used to find
‘nearest’ catalogue In terms of aggregation level: if the library
collection has no specific catalogue, a super-collection might …
NLS down
NLS Z39.50 catalogue not available due to upgrades, etc. Temporarily switched-off in CAIRNS
When NLS collection (or sub-collection) selected in SCONE, COPAC automatically presented as the relevant CAIRNS target Service not totally disrupted User not confused by duplicate item-level
metadata
And then there was …
HaIRST catalogue Physical aggregated copy of local metadata
repositories (some without local visibility) And the HaIRST catalogue itself is a “local”
metadata repository (with visibility) which can be harvested (copied) in turn
SUNCAT p.a.c. of local/global metadata
National Burns Collection catalogue …
Metadata profusion or pollution?
Metadata duplication Direct copies (HaIRST) Augmented copies (COPAC, SUNCAT)
Enhanced descriptive metadata Standardised retrieval metadata
Overlapping catalogues Partial contents copied (SUNCAT, CASS)
Distributed catalogues Partial contents moved (CASS?, HaIRST)
Anglo/UK/Scot NUC
HarvestedUnion cat.
B
Local catalogue
Z39.50catalogue
Distributed Union cat.
B
PhysicalUnion cat.
Item-levelmetadata
Metadatarepository
HarvestedUnion cat.
A
Distributed Union cat.
A
(Distributed) NUC
Landscaping
SCONE cld methods developed for COPAC and CAIRNS are applicable to Any aggregation of structured metadata Any aggregation of aggregation of
structured metadata The key to simplification & clarity lies in the
concept of “nearest” Simple in mono-hierarchy of NLS/COPAC,
much more complex in poly-hierarchy of NLS/COPAC/CASS/SUNCAT/CAIRNS …
