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《图书馆管理杂志》2013,53(1-2):135-136
Abstract

With the transformation of the card catalog into the online public access catalog came the expectation of its increased functionality. For the most part, today's online catalogs perform an expanded list of tasks quite effectively. Bibliographic utilities, system vendors, and individual libraries continue to improve bibliographic retrieval by providing new and better services through the catalog. In spite of these improvements, many observers believe that online catalogs have reached their maturity. Today's information environment includes a wealth of material to which online catalogs cannot provide universal and up-to-date access. Increasingly, librarians are turning to federated searching portal applications to find a means of managing the flood of digital information that threatens to engulf users. This chapter describes essential functionality of such tools, suggesting directions and strategies for improving them. The author concludes that, while the online catalog will continue to function as the principal tool for access control of the library's physical collections, the federated searching portal will ultimately serve as the library's principal Web gateway to digital resources.  相似文献   
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Within the next few years, traditional online public access catalogs will be replaced by more robust and interconnected discovery layers that can serve as primary public interfaces to simultaneously search many separate collections of resources. Librarians have envisioned this type of discovery tool since the 1980s, and research shows that discovery layer functionality and features have already resolved, or will soon remedy, many of the known issues with the traditional online public access catalog. The authors of this article review the literature on discovery, focusing on the evolution from the traditional online public access catalog to newer discovery interfaces, and summarize what has been published regarding the selection and evaluation of these new tools. Based on this review, emerging trends in the acquisition of discovery layers are described, including: the amount of time libraries devote to selection and evaluation, the staff involved and their areas of expertise, which discovery tools were selected to review, the evaluation methods used, and the features and functionality evaluated. The authors conclude with a discussion of the opportunities and concerns for libraries and their patrons related to discovery efforts, and provide direction for future research. While discovery layers are still developing, they show great promise in increasing the use and usability of library resources.  相似文献   
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This research investigates what most catalogers already know—titles alone do not identify works sufficiently. Repetitive titles like “Annual Report” are just the tip of the iceberg. To explore the extent of ambiguity occurring in large sets of health science bibliographic data, the entire National Library of Medicine and Lane Medical Library catalogs and a sample from the PubMed database were analyzed. After measuring the uniqueness of titles, results were recalculated to determine the effect of appending date and/or edition. This initial evidence supports further exploration of whether such structured titles might serve as singular bibliographic identities.  相似文献   
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The problem addressed in this paper is that of simplifying access point determination. A critique is made of the simple, mechanical rule whereby every name appearing in certain designatable locations within a publication qualifies as an access point. Then a more acceptable version of the every-name-an-access-point rule is tested empirically against a sample of 400 English language monographs. Conclusions reached concern (1) the responsibility profiles of these monographs, i.e., how many authors, editors, illustrators and emanators are typically associated with them and in what combinations, and (2) the relative productivity of different locations within them, e.g., title pages and tables of contents, as sources of access points. The study was conceived to be exploratory in nature and its findings suggest further research that could be done to provide empirical validation for rules for access point determination.  相似文献   
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A serials cataloger reflects on the challenges posed by digital preservation and the availability of bibliographic metadata outside of the traditional library catalog.  相似文献   
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This study explored the functionality of the University of Chicago's faceted catalog, Lens, in respect to monographic series. A user study was designed to evaluate the efficiency of Lens in searching for monographic series and also to determine whether controlled series access in the catalog record improves the search results. The results of the study indicate that while Lens could be considered an adequate tool for searching series that are known to be published under the same title, some changes would make it a better search engine for a series that changes series statements from one volume to another.  相似文献   
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The eleven state universities of Florida have long shared an integrated library system architecture, but maintained separate databases. In 2009 the deans and directors of the eleven state university libraries tasked the three largest libraries to investigate the feasibility of combining all catalogs into a single bibliographic entity. With the help of a central automation group, the three successfully negotiated the fine line between sharing data and retaining the unique work created by each of the three libraries. The groundwork laid in this initiative should prove valuable to other libraries seeking to centralize functions and pool resources.  相似文献   
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