What is a ‘collection’ in digital libraries? Changing concepts, objects & economics © Tefko...
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Transcript of What is a ‘collection’ in digital libraries? Changing concepts, objects & economics © Tefko...
What is a ‘collection’ in digital libraries?
Changing concepts, objects & economics
© Tefko SaracevicRutgers University
© Tefko Saracevic, Rutgers University 2
… answer not simple
Library collections in the digital age are changing to new forms AND functionspart is evolution
from old to newpart is revolution
very, very new
Effects on libraries are profound and large
© Tefko Saracevic, Rutgers University 3
Foreword: Where did it all come from?
Emergence of the digital information systems
online bibliographic & numeric databases for searching
online catalog followed byelectronic reference databases full-text digital articles and
journals and digital collectionsAND: new forms of scholarly
communication, e-publications, &e-archives in many fields
All on networks, and most distributed (stored) all over
© Tefko Saracevic, Rutgers University 4
Forces shaping new collection concepts
Changing nature of objects for digital & hybrid libraries
New digital technical & networked environment
Evolving economic models away from ownership
Many possibilities for linkages
Real sharing possibilitiesRevolution in access meansChanges in users’
information seeking, needs, & publishing
© Tefko Saracevic, Rutgers University 5
Traditional concept of a ‘collection’
From library point of viewsum total of library materials that
make a holding of a particular library
organized for use
Major characteristics:objects: (documents) tangible,
have a physical presence & location
economics: ownership of physical object, but not content
location: brick & mortaraccess: tangible, physical, direct
© Tefko Saracevic, Rutgers University 6
Broadening of the traditional concept
Collectiona set of information resources
selected, accumulated & developed for use by a user community or communities
Major characteristics:objects: tangible & intangible,
have a physical presence, but also other media
economics: ownership, but also of access, sharing & cooperation
location: mostly in-houseaccess: direct, but also remote
© Tefko Saracevic, Rutgers University 7
Digital collection - still broader concept
A set of digital & multimedia information resources
selected and/or created following defined criteria & policies
for a defined community of users but not necessarily accumulated
owned, licensed, or freely accessed with possibility of sharing - consortia distributed as to location adapted for networked environment included access & search tools parts with specified access rights included portals to other collections
Still evolving, not yet settled
© Tefko Saracevic, Rutgers University 8
Major characteristics: DL objects
A variety of intangible objectsFrom outside: e-publications, e-
journals, e-books, multimediaFrom inside: objects, collections,
databases created within library1. tangible objects selected from traditional
collections & then digitized & organized 2. objects borne digital, new resources
Gateways, portals, directories links selected, organized, evaluated, vertical portals (vortals) in specialized
areas, subjects, topics digital bridges to distributed resources
© Tefko Saracevic, Rutgers University 9
Characteristics: DL economics
Economics of ownership vs. economics of accessownership declining a lot
counting what owned not relevantreplaced by access
licensing to e-publications time dependent; many variations
sharing costs & access through consortia & similar arrangements
charging distributed, subsidized
Also entering into economics of e-publishing - digitizing
© Tefko Saracevic, Rutgers University 10
Characteristics: DL location
Could be on in-house network
More often, distributed to large number of locationscollection becomes collectionse-publishers providing ‘shelf
space’ to licensed collectionslittle or no control over
distributed resourcesPersistence: a BIG issueDependent on the Internet
& networked arrangements
© Tefko Saracevic, Rutgers University 11
Characteristics: DL access
Access arrangements are an integral part of collection information retrieval for searching
search engines often provided with licensed collections
navigation, browsing arrangementsextended functionality
Different levels of accesssubject to policy & licensepartial universally open full dependent on belonging to a
defined communityUsers usually self-directed
© Tefko Saracevic, Rutgers University 12
Approaches to collection decisions
Collection developmentacquisitions, selection, and
collection buildingbased on criteria & user
needsCollection management
collection development plus a broader range of policy, planning, analysis, and cooperative activities
with digital collections plus close involvement of access
© Tefko Saracevic, Rutgers University 13
Collection management
Number of areas & activities theory and practice of collection
policy development selection, acquisition, licensesmaterials budget allocation,collection analysis,collection use and user studies, staff training & organization preservation, persistencecooperative collection
development; sharing resourcesmanagement of collection space:
from physical to virtual
© Tefko Saracevic, Rutgers University 14
Selection criteria for electronic resources
Many traditional criteria remain but with new interpretations
A number of new criteria have emerged specific to digital nature of resources & access
many can be found on the Web
Judicial Judicial & trusted selection: trusted selection: a ka key value-added contribution
by library trust extends to digital collectionsmakes all the difference between
a library & other collections
© Tefko Saracevic, Rutgers University 15
Specific selection criteria
what & why? - documents, objects
content? purpose? scope? viewpoint?
by whom? - creators, authors, institutions identity? authority? credibility?
reputation? qualification? refereeing?
where? - affiliation, connections identity? overt? covert?
authority? credibility? reputation?
© Tefko Saracevic, Rutgers University 16
criteria ...
for whom? - orientationintended audience? needs
satisfied? fit with user community?
when? - timelinesscurrency? up-to-date?
revisions? persistence estimate?
how? - treatment, coverageaccuracy? credibility?
objectivity? style? clarity? organization? usability?
© Tefko Saracevic, Rutgers University 17
criteria ...
in what way? - presentationformat? layout? interface?
search capabilities? access?
how much? - economics
effort? price? cost-benefits? license? sharing?
in comparison to? - competitionother similar resources?
© Tefko Saracevic, Rutgers University 18
Web sites & cognitive authority
Assigning credibility to Web information a BIG problemsometimes even attribution
difficult identity? reputation? qualifications?
Need to carefully asses:document, author, institution
& affiliation on criteria of: authority; accuracy; currency;
objectivity; coverageLibraries provide an important
service in criteria development & assessments of Web sites
© Tefko Saracevic, Rutgers University 19
Facing: Realities within
Assortment of forces in playeconomic constraints
“libraries are struggling to maintain two libraries: a physical library & a digital library, with resources that are inadequate for both.”
difficulties in finding, training personnel with new competencies
balancing the demands of print and digital materials
difficulty in assessment of many digital resources
difficulty in assuring persistence for many here today, gone tomorrow
© Tefko Saracevic, Rutgers University 20
Facing:Realities without
Dramatic changes in scholarly publishing & communication
technical advances in digitization are truly revolutionizing the way scholarly information is published, organized, maintained, distributed, & accessed - new world emerging
Increased competition in provision of various library-like
services by non-library institutions & commercial organizations
Ever changing technologyhardware, software, networksgetting & keeping competencies
© Tefko Saracevic, Rutgers University 21
Consortia
Library cooperatives emerging as answer to digital collection problemseconomics of scale kick inpower in negotiation for
licensesenable sharing of collectionsregulate access to their
communitiesLibraries forced to working
together by economic realities & technological possibilities
© Tefko Saracevic, Rutgers University 22
Issues for digital collections
Traditions long tested in collection development & management:What standards, values &
approaches to keep? Modify?What new standards to develop?
Location of digital collections: Where? does it matter?
Boundaries: where are they? Forward links - collection? directory? Networks: a gigantic collection?
then, is a particular ‘collection’ meaningful or not to users?
© Tefko Saracevic, Rutgers University 23
Issues ...
Creation: How and where to become
creator of digital collections?Lines between libraries &
publishers blurring
Access: How to integrate with
collection?How to provide, safeguard, &
protect access?Economics:
Where and how to adjust?Trade-off? Sharing? Licensing?
© Tefko Saracevic, Rutgers University 24
Conclusions
The concept of library ‘collection’ has changed dramatically & will change even moreincludes many problems -
should be viewed as opportunities for libraries to innovate & lead
How radically will collection management change in the next five or ten years?
How is it changing on a day-to-day basis right now?