what is a successful digital library? ecdl 2006, alicante, september 18, 2006 rao shen, naga...
TRANSCRIPT
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What is a Successful Digital Library?
ECDL 2006, Alicante, September 18, 2006
Rao Shen, Naga Srinivas Vemuri, Weiguo Fan, and Edward A. Fox
[email protected] http://fox.cs.vt.edu
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Acknowledgements (Selected)
• Sponsors: NSF grant ITR-0325579, ASOR, CWRU, ETANA, Vanderbilt U., Virginia Tech
• Faculty/Staff: Lillian Cassel, Debra Dudley, Manuel Perez, …
• VT (Former) Students: Aaron Krowne, Ming Luo, Fernando Das Neves, Ricardo Torres, Hussein Suleman, …
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Acknowledgements (Selected)
• Karen Borstad, MPP
• Giorgio Buccellati, UCLA
• Douglas Clark, Walla Walla College
• Joanne Eustis, CWRU
• Nick Fischio, CWRU
• Israel Finkelstein, Tel-Aviv University
• Paul Gherman, Vanderbilt U.
• Andrew Graham, U. Toronto
• Tim Harrison, U. Toronto
• Larry Herr, Canadian University College
• Christopher Holland, LRP
• Paul Jacobs, Mississippi State U.
• Douglas Knight, Vanderbilt U.
• Stan LaBianca, Andrews U.
• David McCreery, Willamette U.
• Eric Meyers, Duke U.
• Adam Porter, Illinois College
• Jack Sasson, Vanderbilt U.
• Tom Schaub, Indiana U. of Penn.
• Randall Younker, Andrews U.
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ETANA-DL Website
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ETANA-DL’s Member Collections
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Outline
Prior work DL success model
From end user perspective
Case study Conclusion
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has an exampleIS success model
Prior Work on Measuring DL Success
DeLone et al.
Seddon
has an exampleInformation seekingbehavior model
Ellis
Kuhlthau
has an exampleDL quality model Gonçalves
has an exampleUsability of DLsinspection of NCSTRL
evaluation of ACM, IEEE-CS,NCSTRL, and NDLTD
evaluation of ADL
evaluation of ADEPT
has an indicator
system usage
has an exampleTechnology
acceptance model Venkateshpredict Intention to re/use
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Behavioral Attitude & Intension to Use — Venkatesh Model of IT Adoption
intention to use system
performance expectancy
system usage
Unified Theory of Acceptance and Use of Technology
effort expectancy
social influence
facilitating conditions
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• Performance expectancy: – perceived usefulness, extrinsic motivation, job-fit, relative advantage,
and outcome expectations
• Effort expectancy– the degree of ease associated with the use of system
• Social influence– Subjective norms, social factors, and image
• Facilitating conditions– the degree to which an individual believes that an organizational and
technical infrastructure exist to support the system
Venkatesh Model of IT Adoption
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DeLone and McLean Model of IS Success
System Quality
Information Quality
UserSatisfaction
IndividualImpact
OrganizationImpact
Use
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Seddon Model of IS Success
System Quality
Information Quality
UserSatisfactions
Net Benefits to:
IndividualsOrganizations
Society
PerceivedUsefulness
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Outline
Prior work DL success model
From end user perspective
Case study Conclusion
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DL Success Model
5S and minimal DLSynthesize
IS success and adoption models (see above) Information life cycle model (Borgman et al.) 5S-based DL quality model (Gonçalves et al.) Information-seeking behavior models (Ellis’ and
Kuhlthau’s)
From end user perspective
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Informal 5S & DL Definitions
DLs are complex systems that
• help satisfy info needs of users (societies)
• provide info services (scenarios)
• organize info in usable ways (structures)
• present info in usable ways (spaces)
• communicate info with users (streams)
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5S and DL formal definitions and compositions (April 2004 TOIS)
5S
structures (d.10)streams (d.9) spaces (d.18) scenarios (d.21) societies (d. 24)
structural metadataspecification(d.25)
descriptive metadataspecification(d.26)
repository(d. 33)
collection (d. 31)
(d.34)indexingservice
structured stream (d.29)
digitalobject (d.30)
metadata catalog (d.32)
browsingservice
(d.37)
searchingservice (d.35)
digital library(minimal) (d. 38)
services (d.22)
sequence (d. 3)
graph (d. 6)function (d. 2)
measurable(d.12), measure(d.13), probability (d.14), vector (d.15), topological (d.16) spaces
event (d.10)state (d. 18)
hypertext(d.36)
sequence (d. 3)
transmission(d.23)
relation (d. 1) language (d.5)
grammar (d. 7)
tuple (d. 4)*
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Borgman et al.:Workshop Report onSocial Aspects ofDigital Libraries: http://www-lis.gseis.ucla.edu/DL/
InformationLifeCycle
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Information Life Cycle
AuthoringModifying
OrganizingIndexing
StoringRetrieving
DistributingNetworking
Retention/ Mining
AccessingFiltering
UsingCreating
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crea
tion
distributionsee
kingutilization
search
ing,
browsing,
recommending
storing, archiving,
networkingau
thor
ing,
mod
ifyin
g,
desc
ribin
g org
anizi
ng, i
ndex
ing
pres
erva
bilit
y,
sim
ilari
ty,
tim
elin
ess,
accuracy, completeness,
conformance accessibility, preservability
pertinence,significance,
timelinessre
levan
ce
Activ
e Semi-active
Inactive
accessibility,accessing,
filteringGonçalves et al.
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system quality (SQ)
performance expectancy (PE)
society, scenario,
space
service
accessibility
reliability
ease of use
joy of use
composabilityefficiency
effectiveness
extensibility
reusability
reliability
accessibility accuracy
completeness consistence conformance
pertinence preservability
relevance significance
similarity
timeliness
DL quality
dimension
information quality (IQ)
stream, structure
digital object
metadata
collection
catalog
repository
adequacy
relevance
reliability
scope
timeliness
understandability
social influence (SI)
DL success construct
society
5S and
DL concept
DL visibility
DL success
manifest variable
system quality (SQ)
performance expectancy (PE)
society, scenario,
space
service
accessibility
reliability
ease of use
joy of use
composabilityefficiency
effectiveness
extensibility
reusability
reliability
accessibility accuracy
completeness consistence conformance
pertinence preservability
relevance significance
similarity
timeliness
DL quality
dimension
information quality (IQ)
stream, structure
digital object
metadata
collection
catalog
repository
adequacy
relevance
reliability
scope
timeliness
understandability
social influence (SI)
DL success construct
society
5S and
DL concept
DL visibility
DL success
manifest variable
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crea
tion
distributionsee
kingutilization
E1:starting
E2: chaining
E3: browsin
g
E4: diffe
rentia
ting
E5: monito
ring
E6: extra
cting
storing, archiving,
networking
K1:
in
itia
tion
K2:
se
lectio
n
K3:
explorationK4:
formulation
K5: collection
K6:
presentation
auth
orin
g, m
odify
ing,
desc
ribin
g org
anizi
ng, i
ndex
ing
pres
erva
bilit
y,
sim
ilari
ty,
tim
elin
ess,
accuracy, completeness,
conformance accessibility, preservability
DL Success Constructs
Activ
e Semi-active
Inactive
E: Ellis’ modelK: Kuhlthau’s model
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satisfaction
performanceexpectancy
(PE)
behavioralIntention to
(re)use
relevance adequacy timeliness
reliability understandability scope
accessibilityease of use
joy of use reliability
userinterface
social influence (SI)
information quality(IQ)
system quality(SQ)
DL Success Model
information quality(IQ)
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DL Concepts Regarding Information
collection metadata catalog
digital object metadata specification
repository
consist of
associated with
associated with
consist of consist of
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accessibilitypreservability
pertinencerelevancesimilarity
significancetimeliness
digital object
accuracycompletenessconformance
metadata specification
impact factorcompletenesscollection
consistencycompletenesscatalog
consistencycompletenessrepository
understandabilityrelevancetimelinessreliabilityadequacy
digital objectmetadata specification
adequacy
catalogcollection
scope
repository
Information Quality (IQ)
Digital Library IQ
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satisfaction
performanceexpectancy
(PE)
behavioralIntention to
(re)use
relevance adequacy timeliness
reliability understandability scope
accessibilityease of use
joy of use reliability
userinterface
social influence (SI)
information quality(IQ)
system quality(SQ)
DL Success Model
system quality(SQ)
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screen designnavigation
user interface
composabilityreusability
extensibilityefficiency
effectivenessreliability
serviceaccessibility
reliabilityease of usejoy of use
System Quality(SQ)
performanceexpectancy
Digital Library SQ
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Outline
Prior work DL success model
From end user perspective
Case study Conclusion
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Case Study
Part of requirements analysis for ETANA-DL Email interviews with 5 prestigious
archaeologists Face to face workplace interviews with 11
archaeologists
Associate the 4 constructs of DL success model with the activities occurring in the seeking and utilization phases
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DL success
Construct
seeking phase utilization phase
starting (E1/K1)
selection exploration
(E2-E6)/(K2-K3)
formulation (K4)
collection (K5)
presentation (K6)
social influence DL visibility
information quality adequacy, scope accuracy
system quality ease of use
joy of use (interface)
accessibility accessibility accessibility
performance
expectancy
usefulness
(interface)
DL Success Constructs Associated with Seeking and Utilization Phases
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DL Success Constructs Associated with Seeking Phase
E1: Starting’ activity in Ellis’ model (K1: ‘initiation’ stage in Kuhlthau’s model) Social Influence (SI) — DL visibility
Publicize existence of a DLProvide a DL alert service
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DL Success Constructs Associated with Seeking Phase
E2-E6: ‘chaining’, ‘browsing’, ‘differentiating’, ‘monitoring’, and ‘extracting’ in Ellis’ model (K2-K3: ‘selection’ and ‘exploration’ stages in Kuhlthau’s model) Information Quality (IQ) System Quality (SQ) Performance Expectancy (PE)
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DL Success Constructs Associated with Seeking Phase
E2-E6: ‘chaining’, ‘browsing’, ‘differentiating’, ‘monitoring’, and ‘extracting’ in Ellis’ model (K2-K3: ‘selection’ and ‘exploration’ stages in Kuhlthau’s model) Information Quality (IQ)
Adequacy (degree of sufficiency and completeness) of DL collections and metadata catalogs
Scope of DL repository
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DL Success Constructs Associated with Seeking Phases
E2-E6: ‘chaining’, ‘browsing’, ‘differentiating’, ‘monitoring’, and ‘extracting’ in Ellis’ model (K2-K3: ‘selection’ and ‘exploration’ stages in Kuhlthau’s model) System Quality (SQ)
Ease of use Joy of use
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DL Success Constructs Associated with Seeking Phases
E2-E6: ‘chaining’, ‘browsing’, ‘differentiating’, ‘monitoring’, and ‘extracting’ in Ellis’ model (K2-K3: ‘selection’ and ‘exploration’ stages in Kuhlthau’s model) Performance Expectancy (PE)
Usefulness
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DL Success Constructs Associated with Seeking Phases
E2-E6: ‘chaining’, ‘browsing’, ‘differentiating’, ‘monitoring’, and ‘extracting’ in Ellis’ model (K2-K3: ‘selection’ and ‘exploration’ stages in Kuhlthau’s model) System Quality & Performance Expectancy
DL interface: screen design & navigation
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DL Success Constructs Associated with Utilization Phase
K4-K6: ‘formulation’, ‘collection’, and ‘presentation’ stage in Kuhlthau’s model Information Quality
information accuracy information accessibility
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Outline
Prior work DL success model
From end user perspective
Case study Conclusion
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Conclusion
Lay the foundation for defining success of DLs from the view of DL end users
Assume a multi-theoretical perspectiveSynthesize many related research areas in
terms of theory and empirical workExplicate and illustrate our approach by a
case study with ETANA and usabilityConnect with other work on DL quality: led
by Emory funded by IMLS, DELOS …
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Questions?Comments?
See http://fox.cs.vt.edu/talks/2006/ 20060918ECDLsuccess.ppt