Search (270 results, page 14 of 14)

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Abstract

Zum Wintersemester 2010/11 wurde von der Universitätsbibliothek der Freien Universität Berlin das neue Bibliotheksportal Primo eingeführt, das auf der gleichnamigen Software der Firma Ex Libris basiert. Zunächst in einem "soft launch" als Betaversion live geschaltet, soll es in naher Zukunft den derzeitigen Katalog und die Digitale Bibliothek als Suchoberflächen ersetzen. Diese Situation bot einen optimalen Ausgangspunkt für eine Studie zur Usability des neuen Portals, da deren Ergebnisse direkt in die Neugestaltung der Relaunch-Version einfließen können. Um verschiedene Arten von Usability-Problemen des Bibliotheksportal Primo zu identifizieren, haben sich die Autorinnen einer Methodenkombination bedient. Zum einen wurde eine Heuristische Evaluation und zum anderen 20 Usability-Tests der deutschsprachigen Oberfläche des Portals durchgeführt. Die detaillierte Darstellung der so festgestellten Usability-Probleme bildet den Kern der Arbeit. Als Basis für das Verständnis des Systems und der methodischen Vorgehensweise, wird außerdem Primo im Kontext der "Neuen Kataloge" und deren Funktionalitäten näher beleuchtet, sowie die theoretischen Grundlagen der in der Arbeit verwendeten Methoden der Usability-Evaluation dargestellt.

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Abstract

Subject access to bibliographic data supported by knowledge organization systems, such as subject headings and classification, plays an important role in ensuring the quality of library catalogues. It is generally acknowledged that users have a strong affinity to subject browsing and searching and are inclined tofollow meaningful links between resources. Research studies, however, show that library OPACs are not designed to support or make good use of subject indexes and their underlying semantic structure. A project entitled OPAC semantici was initiated in 2003 by a number of Italian subject specialists and the Italian "Research Group on Subject Indexing" (GRIS) with a goal to analyse and evaluate subject access in Italian library catalogues through a survey of 150 OPACs. Applying the same methodology, a follow-up survey to assess whether any improvement had taken place was conducted five years later, in spring 2008. Analysis of these two surveys indicated that there was a slight improvement. The authors discuss the results of these two surveys, analyse the problems in subject searching in OPACs and explain the recommendations for subject searching enhancement put forward by GRIS. Using the example of Italian OPACs, the authors will attempt to outline some requirements for a subject searching interface and explain how this can be achieved through authority control.

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Date

22. 9.1997 19:16:05

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Content

"Die Verbundzentrale des GBV (VZG) erweitert in Zusammenarbeit mit der Sisis Informationssysteme GmbH ihr Angebot um ein bibliotheksspezifisch konfigurierbares Portal für Öffentliche Bibliotheken (http://vzg-sisis.gbv.de). Ziel ist es, alle Öffentlichen Bibliotheken im Bereich des GBV (Bremen, Hamburg, Mecklenburg-Vorpommern, Niedersachsen, Sachsen-Anhalt, SchleswigHolstein, Thüringen) in die Lage zu versetzen, ihren Kunden einen umfassenden Zugang zu lokalen, regionalen und überregionalen Informationsquellen anzubieten. Das Portal ist konsequent am Endkunden orientiert. Die »Google-ähnliche«, einzeilige Suchmaske macht das Portal intuitiv bedienbar, thematische Sucheinstiege entsprechen den Bedürfnissen des Besuchers. Auf den branchenüblichen Fachjargon wurde durchgehend verzichtet. Als Portalsoftware wird SisisElektra eingesetzt. Das Portal der Öffentlichen Bibliotheken ist ein Serviceportal. Alle verfügbaren Informationsangebote werden durch zahlreiche Angebote aufgewertet: Warenkorbfunktionen, Profildienst, Auskunftsdienst, gegebenenfalls linguistische Wörterbücher etc. Das Portal ist ein lokaler Service. Besucher erhalten einen Nachweis über ihr lokales und regionales Angebot sowie ausgewählte zusätzliche Informationen, die die Bibliothek ihren Kunden bereitstellt. Die Heimatbibliothek dient dem Benutzer als Anlaufstelle für Bestellungen, Anfragen und Erweiterungswünsche. Die technischen und organisatorischen Vorbereitungen für die Einbindung der unterschiedlichen IT Systeme werden derzeit durch die VZG und Sisis getroffen. Umstellung in Braunschweig ... Im Oktober letzen Jahres haben sich die Städtischen Bibliotheken Braunschweig für Sisis-SunRise als neues Bibliothekssystem entschieden. Planmäßig wurden im November Testdaten aus dem Urica-System erfolgreich umgesetzt. Im Dezember folgten externe und interne Schulungen des Personals sowie die Bereitstellung der Infrastruktur und die Schaffung der technischen Voraussetzungen zum Einsatz von SisisSunRise. Zwei Wochen nach Abzug der Urica-Daten (am 30. Dezember 2002) konnte die Öffentliche Bibliothek am 13. Januar den Produktivbetrieb-nun mit Sisis-SunRise - wieder aufnehmen. An sechzig PC-Arbeitsplätzen kommen die Sisis-SunRise Komponenten Katalog, Ausleihe, webOPAC und Erwerbung zum Einsatz. Die zügige Umsetzung des Projektes ist vor allem auch dem Einsatz und der guten Zusammenarbeit mit den Mitarbeitern der Bibliothek zu verdanken. Die Umstellung der wissenschaftlichen Stadtbibliothek wird bis Mitte des Jahres folgen. ... und Wuppertal: Nach eingehender Marktanalyse hat sich die Stadtbibliothek Wuppertal für den Wechsel vom bisherigen Lokalsystem zu SisisSunRise entschieden. Ab Herbst dieses Jahres werden auf über fünfzig Arbeitsplätzen die SisisSunRise Komponenten für alle Funktionsbereiche der Bibliothek zum Einsatz kommen. Mit der Einführung des neuen Systems ist die Grundlage für den Ausbau der Dienstleistungen für die Kunden und die Einführung weiterer Serviceangebote gelegt."

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Content

1. Introduction Significant research in the design and use of online public access catalogues (OPACs) has been conducted by professionals in library and information science (Borgman, 1996; Carlyle, 2001, Carlyle & Timmons, 2002; Hancock, 1987). However, only limited research has addressed actual library user interaction with and perceptions of online catalogue displays and bibliographic elements (Abrera, 1986; Luk, 1996; Markey, 1983). Retrieval systems, specifically online library catalogues, should consider user perceptions and expectations as an important aspect of design and implementation for improved catalogue efficiency (Hert, 1996). Therefore, it is necessary to examine the online catalogue from a user perspective to determine if it is currently succeeding in meeting the bibliographic needs of users in terms of description, display, navigation, and to provide principles for design of future OPACs. A study seeking to understand better how public library users interact with general OPAC displays and the more specific displays of bibliographic information was conducted in 2003. Research questions focused an 1) user perceptions of the OPAC, 2) the elements in a bibliographic display standing out as most important in selection and identification, and 3) user feedback an the process of using the OPAC. The purpose of this paper is to highlight the larger study findings having implications for future research and online catalogue design.

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Abstract

Will there be a library catalogue in the future and, if so, what will it look like? In the last 25 years, the library catalogue has undergone an evolution, from card catalogues to OPACs, discovery systems and even linked data applications making library bibliographic data accessible on the web. At the same time, users expectations of what catalogues will be able to offer in the way of discovery have never been higher. This groundbreaking edited collection brings together some of the foremost international cataloguing practitioners and thought leaders, including Lorcan Dempsey, Emmanuelle Bermès, Marshall Breeding and Karen Calhoun, to provide an overview of the current state of the art of the library catalogue and look ahead to see what the library catalogue might become. Practical projects and cutting edge concepts are showcased in discussions of linked data and the Semantic Web, user expectations and needs, bibliographic control, the FRBRization of the catalogue, innovations in search and retrieval, next-generation discovery products and mobile catalogues.

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Content

Inhalt: Introduction -- Focusing on user needs :new ways of subject access in Czechia -- Subject analysis and indexing :an "Italian version" of the analytico-synthetic model -- Subject search in Italian OPACs :an opportunity in waiting? -- Semiautomatic merging of two universal thesauri :the case of Estonia -- 20 years SWD :German subject authority data prepared for the future -- Mixed translations of the DDC :design, usability, and implications for knowledge organization in multilingual environments -- Animals belonging to the emperor :enabling viewpoint warrant in classification -- Dewey in Sweden :leaving SAB after 87 years -- Enhancing information services using machine-to-machine terminology services -- Social bookmarking and subject indexing -- Social indexing at the Stockholm Public Library -- The Nuovo Soggettario Thesaurus :structural features and web application projects -- Jzyk Hasel Przedmiotowych Biblioteki Narodowej (National Library of Poland Subject Headings) :from card catalogs to Digital Library :some questions about the future of a Local Subject Heading Systems in the changing world of information retrieval -- FAST headings as tags for WorldCat

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Date

3. 5.1997 8:44:22

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Abstract

Subject searching is the most common but also the most conflictive searching for end user. The aim of this paper is to check how users expressions match subject headings and to prove if knowledge structure used in online catalogs enhances searching effectiveness. A bibliographic revision about difficulties in subject access and proposed methods to improve it is also presented. For the empirical analysis, transaction logs from two university libraries, online catalogs (CISNE and FAMA) were collected. Results show that more than a quarter of user queries are effective due to an alphabetical subject index approach and browsing through hypertextual links. 1. Introduction Since the 1980's, online public access catalogs (OPAC's) have become usual way to access bibliographic information. During the last two decades the technological development has helped to extend their use, making feasible the access for a whole of users that is getting more and more extensive and heterogeneous, and also to incorporate information resources in electronic formats and to interconnect systems. However, technology seems to have developed faster than our knowledge about the tasks where it has been applied and than the evolution of our capacities for adapting to it. The conceptual model of OPAC has been hardly modified recently, and for interacting with them, users still need to combine the same skills and basic knowledge than at the beginning of its introduction (Borgman, 1986, 2000): a) conceptual knowledge to translate the information need into an appropriate query because of a well-designed mental model of the system, b) semantic and syntactic knowledge to be able to implement that query (access fields, searching type, Boolean logic, etc.) and c) basic technical skills in computing. At present many users have the essential technical skills to make use, with more or less expertise, of a computer. This number is substantially reduced when it is referred to the conceptual, semantic and syntactic knowledge that is necessary to achieve a moderately satisfactory search. An added difficulty arises in subject searching, as users should concrete their unknown information needs in terms that the information retrieval system can understand. Many researches have focused an unskilled searchers' difficulties to enter an effective query. The mental models influence, users assumption about characteristics, structure, contents and operation of the system they interact with have been analysed (Dillon, 2000; Dimitroff, 2000). Another issue that implies difficulties is vocabulary: how to find the right terms to implement a query and to modify it as the case may be. Terminology and expressions characteristics used in searching (Bates, 1993), the match between user terms and the subject headings from the catalog (Carlyle, 1989; Drabensttot, 1996; Drabensttot & Vizine-Goetz, 1994), the incidence of spelling errors (Drabensttot and Weller, 1996; Ferl and Millsap, 1996; Walker and Jones, 1987), users problems