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  • × theme_ss:"Benutzerstudien"
  1. Wiberley, S.E.; Daugherty, R.A.; Danowski, J.A.: User persistence in displaying online catalog postings : LUIS (1995) 0.06 
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    Abstract
    User persistence in displaying postings is a significant human factor in the design of computer driven information systems, including online catalogs. Expert opinion and a study of users of a first generation online catalogue have suggested that users normally display no more than 30 to 35 postings. A follow up study on a second generation system with a larger database found that a greater proportion of users reported overload, but 100 postings (rather than 15) were considered 'too many'. Partially persistent users typically displayed 28 postings, but overloaded uses did not outnumber totally persistent users until postings retrieved exceeded 200. The findings suggest that, given sufficient resources, designers should still consider 30 to 35 postings typical persistence, but also justify treating 100 or 200 postings as a common threshold of overload
    Source
    Library resources and technical services. 39(1995) no.3, S.247-264
  2. Kaminer, N.: Scholars and the use of the Internet (1997) 0.06 
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    Abstract
    Faculty members from a major university were surveyed to explore the possible relationship between Internet usage and the following dependent variables: computer usage (length of time and perceived expertise), length of time of Internet use, perceived expertise of Internet use, and perceived utility of the Internet. 97% have an Internet account. Furthermore, computer literacy and length of computer experience are correlated with early adoption of the Internet, perceived utility of the Internet is correlated with computer literacy and with Internet usage, and usage is correlated with perceived expertise, but not with the length of time of Internet experience. Highly skilled computer users are more likely to use the network in a more intensive way and have higher appreciation of the network's potential
  3. Connell, T.H.: User acceptance of library catalog results : an exploratory study (1991) 0.05 
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    Source
    Library resources and technical services. 35(1991) no.2, S.191-201
  4. Matus, G.S.; Mendoza, E.S.; Duran, C.V.C.: Estudio comparativo de los usuarios reales y potenciales de bases de datos cientificas : una experiencia y una reflexion en la Universidad de Concepcion (1994) 0.05 
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    Abstract
    Reports of a study in a Chilean university library, comparing 100 users of online databases and CD-ROMs with 100 users of non-computerized bibliographical resources. Results showed that users tended to be teachers / researchers, and potential users were postgraduate students. Comparison of search results showed online searching improved results and saved time. The chief reasons for non-use were ignorance of the service and use of own personal computer. The study indicated the need to review policy on database acquisition and improve promotion of the service. In general, librarians should motivate greater use of online searching by providing skilled intermediary services to maximize uptake
  5. Banwell, L.; Ray, K.; Coulson, G.; Urquhart, C.; Lonsdale, R.; Armstrong, C.; Thomas, R.; Spink, S.; Yeoman, A.; Fenton, R.; Rowley, J.: ¬The JISC User Behaviour Monitoring and Evaluation Framework (2004) 0.05 
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    Abstract
    Describes key aspects of the methodology and outcomes of the JISC User Behaviour Monitoring and Evaluation Framework in its first three annual cycles (1999-2002). The Framework was initiated to assure the JISC that their investment in digital content and network infrastructure facilitates use and learning, and to identify barriers and facilitators to the use of electronic information services (EIS). Key Framework outcomes are: a multi-dimensional across sector methodology for the continued monitoring of user behaviour in respect of EIS and the factors that impact on that behaviour; a profile of user behaviour in respect of EIS over the three annual cycles of the Framework; the EIS Diagnostic Toolkit that can be used to benchmark development in the provision and use of EIS in specific disciplines or at specific institutions; a methodology for monitoring, and a profile of the EIS resources available to higher and further education users; and a summary of some of the key issues in their provision. The challenge for the future is the embedding of EIS in curricula and learning experiences.
  6. Moulaison, H.L.: OPAC queries at a medium-sized academic library : a transaction log analysis (2008) 0.05 
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    Date
    10. 9.2000 17:38:22
    Source
    Library resources and technical services. 52(2008) no.4, S.230-237
  7. Lehmann, S.; Renfro, P.: Humanists and electronic information services : acceptance and resistance (1991) 0.04 
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    Abstract
    The design and implementations of online systems in libraries have proceeded without much demonstrated empirical understanding of the complexities of users' needs. Reports interviews with a group of humanist scholars at the Univ. of Pennsylvania about their experiences with the Research Libraries Information Network (RLIN) database. These interviews yielded a wide range of responses. 4 factors emerged consistently as significant determinants of use: content, connectivity, user-friendliness, and cost. Discusses and evaluates the significance of these factors, individually and in relation to one another
  8. Borgman, C.L.; Smart, L.J.; Millwood, K.A.; Finley, J.R.; Champeny, L.; Gilliland, A.J.; Leazer, G.H.: Comparing faculty information seeking in teaching and research : implications for the design of digital libraries (2005) 0.04 
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    Abstract
    ADEPT is a 5-year project whose goals are to develop, deploy, and evaluate inquiry learning capabilities for the Alexandria Digital Library, an extant digital library of primary sources in geography. We interviewed nine geography faculty members who teach undergraduate courses about their information seeking for research and teaching and their use of information resources in teaching. These data were supplemented by interviews with four faculty members from another ADEPT study about the nature of knowledge in geography. Among our key findings are that geography faculty are more likely to encounter useful teaching resources while seeking research resources than vice versa, although the influence goes in both directions. Their greatest information needs are for research data, maps, and images. They desire better searching by concept or theme, in addition to searching by location and place name. They make extensive use of their own research resources in their teaching. Among the implications for functionality and architecture of geographic digital libraries for educational use are that personal digital libraries are essential, because individual faculty members have personalized approaches to selecting, collecting, and organizing teaching resources. Digital library services for research and teaching should include the ability to import content from common office software and to store content in standard formats that can be exported to other applications. Digital library services can facilitate sharing among faculty but cannot overcome barriers such as intellectual property rights, access to proprietary research data, or the desire of individuals to maintain control over their own resources. Faculty use of primary and secondary resources needs to be better understood if we are to design successful digital libraries for research and teaching.
    Date
    3. 6.2005 20:40:22
  9. Wyly, B.J.: From access point to materials : a transaction log analysis of access point value for online catalog users (1996) 0.04 
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    Abstract
    Reports results of a study to investigate judgements made by searchers of online catalogues by using transaction log analysis to associate online catalogue searchmethods with decisions so as to retrieve location information. The study used the Mainframe Interface to Libraries Online (MILO), an interface to the Illinois Library Computer Systems Office (ILCSO) online union catalogue for the 45 academic libraries belonging to ILCSO. MILO provides access to a bibliographic database and directly links to another database with circulation and location records. As the latter database only provides location and circulation status, searchers' decisions to make links to such data are seen as an indication that the records being linked represent potentially useful material. Via a transaction log analysis, the linked location records were associated wiht the access points used to retrieve them in order to analyze the value and problems of searchers' uses of specific access points. Transaction logs were analyzed for a 38-day sample of the 1994 logs. Counting of records retrieved through the use of multiple access points (making the total greater than 100%), subject fields were used to access over 30%, author fields to access over 19%, and title fields to access over 51% of all records linked to location information. Other fields were used to retrieve very small percentages of linked records
    Source
    Library resources and technical services. 40(1996) no.3, S.211-236
  10. Kalin, S.W.: ¬The searching behavior of remote users : a study of one online public access catalog (OPAC) (1991) 0.04 
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    Abstract
    This study aimed to determine if the searching behaviour of remote users of LIAS, Penn State's online catalogue differed from those using the OPAC within the library. More than 1.000 searches done by remote users (those accessing the system via either dial-access or the university's computer network) were compared to more than 1.000 searches done by in-house users. Each search was duplicated step by step and analysed according to a pre-determined set of criteria. Although few dramatic differences were found between the 2 groups, there were enough subtle differences to generate interest. In general, remote users are the more sophisticated searchers, bearing out the assumption that remote users seem to have a better conceptual knowledge of how an information system should operate. On the other hand, they struggle more with the procedural details of how to use the OPAC. Dial-access users seem to constitute a unique group of users: their searches are often quite different than those done by either network or in-house users
  11. Song, Y.-S.: International business students : a study on their use of electronic library services (2004) 0.04 
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    Abstract
    This study seeks to explore and report international business students' perceptions and expectations of electronic library services at the University of Illinois at Urbana-Champaign. A total of 143 international business students an campus volunteered to fill out a survey. The results were analyzed using descriptive statistics as weIl as inferential statistics such as t-tests and correlation. A significant portion of international business students has no prior experience with electronic library services in their home countries. Moreover, about a half of international business students go to libraries other than the Business and Economics Library, partly because they provide better environment for study. Although electronic resources are available without the constraint of location, providing reference services for those who do not use the Business and Economics Library becomes a challenge. Virtual reference is an excellent tool, but most international business students do not see it as an important library service. Based an the results, implications for information literacy and virtual reference service are discussed.
    Source
    Reference services review. 32(2004) no.4, S.367-373
    Theme
    Information Resources Management
  12. Drabenstott, K.M.; Simcox, S.; Fenton, E.G.: End-user understanding of subject headings in library catalogs (1999) 0.04 
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    Date
    10. 9.2000 17:38:22
    Source
    Library resources and technical services. 43(1999) no.3, S.140-160
  13. Liebscher, P.; Abels, E.G.; Denman, D.W.: Factors that influence the use of electronic networks by science and engineering faculty at small institutions : Part II: Preliminary use indicators (1997) 0.04 
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    Abstract
    Reports results of a study that examined factors influencing the adoption and use of electronic networks by science and engineering faculty in 6 small universities in the southerneaster USA. Part of the study gathered data on the purpose, type, and extent of electronic communications. Data were gathered by mail questionnaire and by follow up site visits. Reports on 5 types of network use, electronic mail, electronic discussion groups, accessing remote databases, accessing remote computer facilities, and file transfer. For each service, data are reported for frequency of use by purpose: research, teaching administration, social and current awareness. Outlines preliminary use indicators for each service in terms of heavy and moderate use
  14. Ballard, T.: Comparative searching styles of patrons and staff (1994) 0.03 
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    Abstract
    3 months of transaction records from the INNOPAC online catalogue, at Adelphi University, New York, were examined. Patron searchers rely on the standard access points of subject, title, and author for nearly 90% of their searches. Library employees search by title nearly 50% of the time. Title searching predominated among technical services staff as well as public service staff. Approximately 30% of staff searches and 40% of patron searches retrieved no records. Patrons were 10 times more likely than staff to make a search resulting in 500 or more hits
    Source
    Library resources and technical services. 38(1994) no.3, S.193-305
  15. Bertot, J.C.; McClure, C.R.: Impacts of public access to the Internet through Pennsylvania public libraries (1997) 0.03 
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    Abstract
    Reports results of an evaluation of the Online at PA Libraries project (Autumn 1996 to Autumn 1997), funded by Bell Atlantic and administered by the Pennsylvania Dept. of Education's Office of Commonwealth Libraries and the Schuylkill Intermediate Unit, which has had a significant impact on the provision of Internet based information services and resources to Pennsylvania public library users. 4 surveys were conducted: a survey to assess the participating libraries' expectations concerning the project; a user survey to determine user satisfaction, demographic and overall project and Internet assessment; and 2 training evaluation surveys conducted at the start and at the follow up stage of the project. The project has provided a statewide demonstration of what can be done to improve quickly and significantly the statewide public library services; to connect public libraries to the Internet and provide a range of new services and resources to their communities; and to 'junpstart' libraries, librarians and citizens into the global networked society
  16. Belkin, N.J.: ¬An overview of results from Rutgers' investigations of interactive information retrieval (1998) 0.03 
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    Abstract
    Over the last 4 years, the Information Interaction Laboratory at Rutgers' School of communication, Information and Library Studies has performed a series of investigations concerned with various aspects of people's interactions with advanced information retrieval (IR) systems. We have benn especially concerned with understanding not just what people do, and why, and with what effect, but also with what they would like to do, and how they attempt to accomplish it, and with what difficulties. These investigations have led to some quite interesting conclusions about the nature and structure of people's interactions with information, about support for cooperative human-computer interaction in query reformulation, and about the value of visualization of search results for supporting various forms of interaction with information. In this discussion, I give an overview of the research program and its projects, present representative results from the projects, and discuss some implications of these results for support of subject searching in information retrieval systems
    Date
    22. 9.1997 19:16:05
    Source
    Visualizing subject access for 21st century information resources: Papers presented at the 1997 Clinic on Library Applications of Data Processing, 2-4 Mar 1997, Graduate School of Library and Information Science, University of Illinois at Urbana-Champaign. Ed.: P.A. Cochrane et al
  17. Ray, K.L.; Long, M.S.: Analyzing search styles of patrons and staff : a replicative study of two university libraries (1997) 0.03 
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    Abstract
    Librarians at the University of the Pacific, California (UOP) designed a replication of an earlier transaction log study carried out at Adelphi University, New York (LRTS 38(1994) no.3, S.293-305). It was hypothesized that library staff would use a feature that allows the searcher to limit a search by location or material type more often than users. It was also hypothesized that library staff and reference librarians would have a higher success rate than public users. The third hypothesis was that UOP users would perform keyword searches more often than library staff. Studies were conducted in 1995 in 1996 to test these hypotheses to provide comparative data on the search styles of users and staff. Searches of the INNOPAC database, using transaction logs, were performed by 4 terminal groups: public users, technical services staff, public services staff, and reference librarians. It was discovered that replicating a study is not nearly as straightforward as was initially thought. It was also found to be surprisingly difficult to compare year to year data at the same institution; primarily due to a continually changing technological environment
    Source
    Library resources and technical services. 41(1997) no.3, S.210-235
  18. McQueen, T.F.; Fleck, R.A. Jr.: Changing patterns of Internet usage and challenges at colleges and universities (2005) 0.03 
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    Abstract
    Increased enrollments, changing student expectations, and shifting patterns of Internet access and usage continue to generate resource and administrative challenges for colleges and universities. Computer center staff and college administrators must balance increased access demands, changing system loads, and system security within constrained resources. To assess the changing academic computing environment, computer center directors from several geographic regions were asked to respond to an online questionnaire that assessed patterns of usage, resource allocation, policy formulation, and threats. Survey results were compared with data from a study conducted by the authors in 1999. The analysis includes changing patterns in Internet usage, access, and supervision. The paper also presents details of usage by institutional type and application as well as recommendations for more precise resource assessment by college administrators.
  19. Nahl, D.: Ethnography of novices' first use of Web search engines : affective control in cognitive processing (1998) 0.03 
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    Abstract
    Reports results of a study, conducted at Hawaii University, Department of Information and Computer Science, to understand the novide searchers' experience in learning to use a WWW search engine. Without prior searching instruction, undergraduate novives wrote structured self reports during their first session on a Web search engine. Users choose their own topics and followed written instructions that prompted them to describe thoughts and feelings during specified stages of the search; pre search formulation; search statement formulation; search strategy; and evaluation of the results. The sentences in the self reports were numbered and then coded according to their affective or cognitive function. The affective sentences reveal how users set goals and limit the scope of the cognitive operations. Search acts appear to be governed by an affective filter that organizes incoming information and provides criteria for ranking cognitive relevance to search goal. Content analysis identifies reasons users have for rating self confidence, stress level, satisfaction, usefulness, and success with future searches
    Source
    Internet reference services quarterly. 3(1998) no.2, S.51-72
  20. Snavely, L.; Clark, K.: What users really think : how they see and find serials in the arts and sciences (1996) 0.02 
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    Source
    Library resources and technical services. 40(1996) no.1, S.49-51,54-60

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