(Person) Percentage - Sabanci University Research Database

The Asian Conference on Media & Mass Communication Osaka, Japan
resources from personal computers or download
resources from Internet, software stability is
indispensable factor for DLs working well. (Wu,
2008)
Ying-xing LI and Zheng-xing MAN provide a
quantitative method of software quality assessment
for the digitizing system; they state which quality
factors of digital software can be divided into three
modules to evaluate. Namely, data collecting
including three indices (suitability, accuracy and
security), picture processing including two indices
(compression ratio, fidelity) and information
querying including three indices (rationality, recall
fallout ratio and accurate detection ratio).
Other features comprise usability including
three indices (understandability, learnability, and
Operability), reliability, efficiency, portability and
maintainability every which including four indices
(adopt fault tolerance, time behavior, stability,
adaptability). (LI & MAN, 2008)
4.2 Digital Collections
Collections of digital libraries reflect the
content of the digital libraries, and they are the
core of the digital libraries, some indicators were
illustrated by Yanchun & Jin (2009) which is
explained some variables in criteria Collection
quality, it is included: Scope, Authority, Accuracy,
Completeness, Currency, and Copyright. (Yanchun
& Jin, 2009)
In research was done by Deng & Li (2008) four
important indicator are essential to the library
collection meet the needs of users, namely
Comprehensiveness, Effectiveness, Practicability,
Diversification. (Deng & Li, 2008)
4. 3 Performance
The objective of digital libraries is to facilitate
users finding the information that they need, this
shows that efficiency and effectiveness, precision
and recall are very important for System
performance (Yanchun & Jin, 2009)
Yumin Zhao and et al. (2010) have been
argued for evaluating based on performance in
DLs in following three layers: The underlying
technology of system core,The information
retrieval technic, The service technic for the user.
(Yumin Zhao and et al, 2010)
4.4 Searching and browsing
Qing and Ruhua (2008) have believed
Searching is always a crucial factor that should be
considered by every digital information system,
they examine Searching service in two factors
named Approach and Technique, Approach
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comprising retrieve unique identifier or construct
URL with identifier; use the interface for quick or
advanced or experimental search, browse by
journal, browse by author/editor, subject,
book/journal, country & year, and Technique
comprising Boolean search, phase search, exact
search. (Qing & Ruhua, 2008)
Byamugisha have believed systems will
probably have complex human-computer
interfaces to facilitate the search and retrieval
process. (Byamugisha, 2010)
According to Isfandyari-Moghaddam &Bayat
(2008), Functionality is defined as the extent to
which the information and services of a DL
perform the expected observations and provide the
content that they are designed to provide.
According to Bertot et al. (2006), functionality
testing determines the extent to which a DL, in
whole or in part, is able to perform desired actions
(e.g. basic search, multiple languages).
4. 5 Usability
Judy Jeng (2004) in her research proposes
methods and instruments for assessing usability of
academic digital libraries. Criteria in this study are
effectiveness, efficiency, satisfaction, and
learnability. It is found that there exist interlocking
relationships among effectiveness, efficiency, and
satisfaction. (Jeng, 2004)
Kim and kim (2008) established a usability
evaluation framework, composed of four
categories: (1) satisfaction ;( 2) supportiveness ;(
3) usefulness, and (4) effectiveness
The research was done by Qing and Ruhua
(2008) designs an evaluation framework of DLs,
the paper uses three variables to assess the
usability of DLs repositories: effectiveness,
efficiency and satisfaction.(Qing & Ruhua, 2008)
4.6 Interface
In the research was done by OoK Lee on the
Korean national digital library, he believed that the
interface of digital library should be user friendly
and understandable because it’s the librarian of the
digital library.
4. 7 IT Infrastructure
Byrd, Sambamurthy & Zmud defined IT
infrastructure as the shared information services
delivery base within an organization that is built
around information technologies and a specific