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Abstract

A system of library classification that flashed across the inquiring mind of young Melvil Louis Kossuth Dewey (known as Melvil Dewey) in 1873 is still the most popular classification scheme.. The modern library classification begins with Dewey Decimal Classification (DDC). Melvil Dewey devised DDC in 1876. DDC has is credit of 128 years of boudless success. The DDC is being taught as a practical subject throughout the world and it is being used in majority of libraries in about 150 countries. This is the result of continuous revision that 22nd Edition of DDC has been published in July 2003. No other classification scheme has published so many editions. Some welcome changes have been made in DDC 22. To reduce the Christian bias in 200 religion, the numbers 201 to 209 have been devoted to specific aspects of religion. In the previous editions these numbers were devoted to Christianity. to enhance the classifier's efficiency, Table 7 has been removed from DDC 22 and the provision of adding group of persons is made by direct use of notation already available in schedules and in notation -08 from Table 1 Standard Subdivision. The present book is an attempt to explain, with suitable examples, the salient provisions of DDC 22. The book is written in simple language so that the students may not face any difficulty in understanding what is being explained. The examples in the book are explained in a step-by-step procedure. It is hoped that this book will prove of great help and use to the library professionals in general and library and information science students in particular.

Content

1. Introduction to DDC 22 2. Major changes in DDC 22 3. Introduction to the schedules 4. Use of Table 1 : Standard Subdivisions 5. Use of Table 2 : Areas 6. Use of Table 3 : Subdivisions for the arts, for individual literatures, for specific literary forms 7. Use to Table 4 : Subdivisions of individual languages and language families 8. Use of Table 5 : Ethic and National groups 9. Use of Table 6 : Languages 10. Treatment of Groups of Persons

Object

DDC-22

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Abstract

This revised edition of Wynar's Introduction to Cataloging and Classification (9th ed., 2000) completely incorporates revisions of AACR2, enhancements to MARC 21, and developments in areas such as resource description and access. Aside from the many revisions and updates and improved organization, the basic content remains the same. Beginning with an introduction to cataloging, cataloging rules, and MARC format, the book then turns to its largest section, "Description and Access." Authority control is explained, and the various methods of subject access are described in detail. Finally, administrative issues, including catalog management, are discussed. The glossary, source notes, suggested reading, and selected bibliography have been updated and expanded, as has the index. The examples throughout help to illustrate rules and concepts, and most MARC record examples are now shown in OCLC's Connexion format. This is an invaluable resource for cataloging students and beginning catalogers as well as a handy reference tool for more experienced catalogers.

Series

Library and information science text series

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Content

"The contents of the book cover: This book is intended as an introduction to the Dewey Decimal Classification, edition 22. It is not a substitute for it, and I assume that you have it, all four volumes of it, by you while reading the book. I have deliberately included only a short section an WebDewey. This is partly because WebDewey is likely to change more frequently than the printed version, but also because this book is intended to help you use the scheme regardless of the manifestation in which it appears. If you have a subscription to WebDewey and not the printed volumes you may be able to manage with that, but you may then find my references to volumes and page numbers baffling. All the examples and exercises are real; what is not real is the idea that you can classify something without seeing more than the title. However, there is nothing that I can do about this, and I have therefore tried to choose examples whose titles adequately express their subject-matter. Sometimes when you look at the 'answers' you may feel that you have been cheated, but I hope that this will be seldom. Two people deserve special thanks. My colleague Vanda Broughton has read drafts of the book and made many suggestions. Ross Trotter, chair of the CILIP Dewey Decimal Classification Committee, who knows more about Dewey than anyone in Britain today, has commented extensively an it and as far as possible has saved me from error, as well as suggesting many improvements. What errors remain are due to me alone. Thanks are also owed to OCLC Online Computer Library Center, for permission to reproduce some specimen pages of DDC 22. Excerpts from the Dewey Decimal Classification are taken from the Dewey Decimal Classification and Relative Index, Edition 22 which is Copyright 2003 OCLC Online Computer Library Center, Inc. DDC, Dewey, Dewey Decimal Classification and WebDewey are registered trademarks of OCLC Online Computer Library Center, Inc."

Footnote

Dewey requires that you classify bilingual dictionaries that go only one way with the language in which the entries are written, which means that an English-French dictionary has to go with English, not French. This is very unhelpful and probably not widely observed in English-speaking libraries ... one may wonder (the Norman conquest not withstanding) why Bowman feels that it is more useful to class the book in the language of the definition rather than that of the entry words - Dewey's requirement to class a dictionary of French words with English definitions with French language dictionaries seems quite reasonable. In the example of Anglo-French relations before the second World War (p. 42) the principle of adding two notations from Table 2 is succinctly illustrated but there is no discussion of why the notation is -41044 rather than -44041. Is it because the title is 'Anglo'-'French', or because -41 precedes -44, or because it is assumed that the book is being catalogued for an English library that wished to keep all Anglo relations together? The bibliography lists five classic works and the School Library Association (UK) website. The index provides additional assistance in locating topics; however it is not clear whether it is intended to be a relative index with terms in direct order or nouns with subdivisions. There are a few Cross-references and some double posting. The instruction ") ( means 'compared with"' (p. 147) seems particularly twee since the three occasions in the index could easily have included the text "compared with;" the saving of space is not worth the potential confusion. There is no entry for "displaced standard subdivisions" one must look under "standard subdivisions" with the subdivision "displaced." There is no entry for "approximating the whole," although "standing room," "class here notes" and "including notes" are listed. Both "rule of zero" and "zero" with the subdivision "rule of" are included. The "rule of zero" is really all you need to know about Dewey (p. 122): Something which can be useful if you are really stuck is to consider the possibilities one digit at a time, and never put 0 if you can put something more specific. Be as specific as possible, but if you can't say something good, say nothing. This slim volume clearly follows this advice."

Object

DDC-22

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Abstract

Few can imagine a world without telephones or televisions; many depend an computers and the Internet as part of daily life. Without scientific theory, these developments would not have been possible. In this exceptionally clear and engaging introduction to the philosophy of science, James Ladyman explores the philosophical questions that arise when we reflect an the nature of the scientific method and the knowledge it produces. He discusses whether fundamental philosophical questions about knowledge and reality might be answered by science, and considers in detail the debate between realists and antirealists about the extent of scientific knowledge. Along the way, central topics in the philosophy of science, such as the demarcation of science from non-science, induction, confirmation and falsification, the relationship between theory and observation, and relativism, are all addressed. Important and complex current debates over underdetermination, inference to the best explanation and the implications of radical theory change are clarified and clearly explained for these new to the subject. The style is refreshing and unassuming, bringing to life the essential questions in the philosophy of science. Ideal for any student of philosophy or science, this book requires no previous knowledge of either discipline. It contains the following textbook features: - suggestions for further reading - cross-referencing with an extensive bibliography.

LCSH

Science / philosophy

Subject

Science / philosophy

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Footnote

Rez. in: JASIST 55(2004) no.2, S.178-179 (M.-Y. Kan): "In their latest book, Chowdhury and Chowdhury have written an introductory text an digital libraries, primarily targeting "students researching digital libraries as part of information and library science, as well as computer science, courses" (p. xiv). It is an ambitious work that surveys many of the broad topics in digital libraries (DL) while highlighting completed and ongoing DL research in many parts of the world. With the revamping of Library and Information Science (LIS) Curriculums to focus an information technology, many LIS schools are now teaching DL topics either as an independent course or as part of an existing one. Instructors of these courses have in many cases used supplementary texts and compeed readers from journals and conference materials, possibly because they feel that a suitable textbook has yet to be written. A solid, principal textbook for digital libraries is sorely needed to provide a critical, evaluative synthesis of DL literature. It is with this in mind that I believe Introduction to Digital Libraries was written. An introductory text an any Cross-disciplinary topic is bound to have conflicting limitations and expectations from its adherents who come from different backgrounds. This is the rase in the development of DL Curriculum, in which both LIS and computer science schools are actively involved. Compiling a useful secondary source in such Cross-disciplinary areas is challenging; it requires that jargon from each contributing field be carefully explained and respected, while providing thought-provoking material to broaden student perspectives. In my view, the book's breadth certainly encompasses the whole of what an introduction to DL needs, but it is hampered by a lack of focus from catering to such disparate needs. For example, LIS students will need to know which key aspects differentiate digital library metadata from traditional metadata while computer science students will need to learn the basics of vector spare and probabilistic information retrieval. However, the text does not give enough detail an either subject and thus even introductory students will need to go beyond the book and consult primary sources. In this respect, the book's 307 pages of content are too short to do justice to such a broad field of study.
This book covers all of the primary areas in the DL Curriculum as suggested by T. Saracevic and M. Dalbello's (2001) and A. Spink and C. Cool's (1999) D-Lib articles an DL education. In fact, the book's coverage is quite broad; it includes a Superset of recommended topics, offering a chapter an professional issues (recommended in Spink and Cool) as well as three chapters devoted to DL research. The book comes with a comprehensive list of references and an index, allowing readers to easily locate a specific topic or research project of interest. Each chapter also begins with a short outline of the chapter. As an additional plus, the book is quite heavily Cross-referenced, allowing easy navigation across topics. The only drawback with regard to supplementary materials is that it Lacks a glossary that world be a helpful reference to students needing a reference guide to DL terminology. The book's organization is well thought out and each chapter stands independently of the others, facilitating instruction by parts. While not officially delineated into three parts, the book's fifteen chapters are logically organized as such. Chapters 2 and 3 form the first part, which surveys various DLs and DL research initiatives. The second and core part of the book examines the workings of a DL along various dimensions, from its design to its eventual implementation and deployment. The third part brings together extended topics that relate to a deployed DL: its preservation, evaluation, and relationship to the larger social content. Chapter 1 defines digital libraries and discusses the scope of the materials covered in the book. The authors posit that the meaning of digital library is best explained by its sample characteristics rather than by definition, noting that it has largely been shaped by the melding of the research and information professions. This reveals two primary facets of the DL: an "emphasis an digital content" coming from an engineering and computer science perspective as well as an "emphasis an services" coming from library and information professionals (pp. 4-5). The book's organization mirrors this dichotomy, focusing an the core aspects of content in the earlier chapters and retuming to the service perspective in later chapters.
Another weakness of the book is its favoritism towards the authors' own works. To a large extent, this bias is natural as the authors know their own works best. However, in an introductory text, it is critical to reference the most appropriate source and give a balanced view of the field. In this respect, 1 feel the book could be more objective in its selection of references and research projects. Introduction to Digital Libraries is definitely a book written for a purpose. LIS undergraduates and "practicing professionals who need to know about recent developments in the field of digital libraries" (p. xiv) will find this book a fine introduction, as it is clearly written and accessible to laymen, giving explanations without delving into terminology and math. As it surveys a large number of projects, it is also an ideal starting point for students to pick and investigate particular DL research projects. However, graduate LIS students who already have a solid understanding of library fundamentals as well as Computer science students may find this volume lacking in details. Alternative texts such as Lesk (1999) and Arms (2000) are possibly more suitable for those who need to investigate topics in depth. For the experienced practitioner or researcher delving into the DL field for the first time, the recent 2002 ARIST chapter by Fox and Urs may also be a suitable alternative. In their introduction, the authors ask, "What are digital libraries? How do they differ from online databases and search services? Will they replace print libraries? What impact will they have an people and the society?" (p. 3). To answer these questions, Chowdhury and Chowdhury offer a multitude of case studies to let the audience draw their own conclusions. To this end, it is my opinion that Introduction to Digital Libraries serves a useful purpose as a supplemental text in the digital library Curriculum but misses the mark of being an authoritative textbook."

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Object

DDC-22

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Series

Books in library and information science

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Footnote

Rez. in: JASIST 57(2006) no.1, S.144-145 (H. Saggion): "... This volume is a very valuable source of information for not only students and professionals in library and information science but also for individuals and institutions involved in knowledge management and organization activities. Because of its broad coverage of the information science topic, teachers will find the contents of this book useful for courses in the areas of information technology, digital as well as traditional libraries, and information science in general."

Imprint

Champaign, IL : Graduate School of Library and Information Science

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Footnote

Offers practitioners and students of library and information science a complete, up-to-date, and practical guide to the world of cataloguing and classification.

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Abstract

This book provides the necessary skills for a cataloger in a library or other information agency, whether a professional or paraprofessional level. It is also suitable for university students studying librarianship and those independently learning subject cataloging. Reviews the various parts of the LCSH cataloging system and contains use practice exercises and tests. A glossary, bibliography and index complete this fourth study guide in the library basics series

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Object

DDC-22

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Date

10. 9.2004 10:22:40

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Footnote

Rez. in: BuB 56(2004) H.12, S.743 (H, Meinhardt): "1987 erstmals erschienen und seitdem ein Klassiker unter den Lehrbüchern im Feld der Information Science, liegt nunmehr die dritte, deutlich veränderte Auflage vor. Notwendig geworden war die Überarbeitung vor allem durch die Dynamik im Bereich der Informationstechnologien und deren Auswirkungen sowohl auf die Praxis der Informationsspezialisten wie auch die Disziplin selber. Augenfälligste Veränderung ist denn auch ein neues Kapitel zu »Internet und Informationswissenschaft«. »Chemical librarians« Zunächst einige Worte zu den Autoren, die dem einen oder anderen vielleicht nicht bekannt sind: Brian C. Vickery und Alina Vickery sind beide von ihrer Ausbildung her Chemiker und waren als Ehepartner (Alina Vickery starb Ende 2001) auch beruflich vielfältig gemeinsam tätig. Wie viele Chemiker (man denke nur Eugene Garfield, den Begründer der modernen Szientometrie) sensibilisiert für den Umgang mit enormen Informationsmengen und damit Informationsproblemen, zudem als »chemical librarian« (Brian C. Vickery) und Mitarbeiter von chemischen Fachzeitschriften auch professionell beschäftigt mit Fragen des Fachinformationstransfers, haben sie sich (insbesondere Brian C. Vickery) frühzeitig und kontinuierlich informationswissenschaftlich betätigt. Resultat ist eine Fülle von Publikationen, vor allem zu den Bereichen Indexieren, Klassifizieren, Information Retrieval, auch zur Geschichte der wissenschaftlichen Kommunikation (alle Arbeiten sind im Anhang aufgelistet). Brian C. Vickery war außerdem, das dürfte für Bibliothekare von Interesse sein, als Deputy beim Aufbau der National Lending Library for Science and Technology (NLLST) in Boston Spa beteiligt, die ihre Arbeit 1961 aufnahm und 1973 mit in die neu gegründete British Library einging. Und es sei hier schon vorab bemerkt, dass der immer wiederkehrende Bezug von informationswissenschaftlichen Fragestellungen auf die bibliothekarische Praxis ein Vorzug dieses Buches ist.

LCSH

Information science

PRECIS

Information science

Subject

Information science
Information science

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Abstract

The World Wide Web is rapidly filling with more text than anyone could have imagined even a short time ago, but the task of isolating relevant parts of this vast information has become just that much more daunting. Richard Belew brings a cognitive perspective to the study of information retrieval as a discipline within computer science. He introduces the idea of Finding Out About (FDA) as the process of actively seeking out information relevant to a topic of interest and describes its many facets - ranging from creating a good characterization of what the user seeks, to what documents actually mean, to methods of inferring semantic clues about each document, to the problem of evaluating whether our search engines are performing as we have intended. Finding Out About explains how to build the tools that are useful for searching collections of text and other media. In the process it takes a close look at the properties of textual documents that do not become clear until very large collections of them are brought together and shows that the construction of effective search engines requires knowledge of the statistical and mathematical properties of linguistic phenomena, as well as an appreciation for the cognitive foundation we bring to the task as language users. The unique approach of this book is its even handling of the phenomena of both numbers and words, making it accessible to a wide audience. The textbook is usable in both undergraduate and graduate classes on information retrieval, library science, and computational linguistics. The text is accompanied by a CD-ROM that contains a hypertext version of the book, including additional topics and notes not present in the printed edition. In addition, the CD contains the full text of C.J. "Keith" van Rijsbergen's famous textbook, Information Retrieval (now out of print). Many active links from Belew's to van Rijsbergen's hypertexts help to unite the material. Several test corpora and indexing tools are provided, to support the design of your own search engine. Additional exercises using these corpora and code are available to instructors. Also supporting this book is a Web site that will include recent additions to the book, as well as links to sites of new topics and methods.

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Footnote

The chapter concludes with an appendix of search tips that even seasoned searchers will appreciate; these tips cover the complete search process, from preparation to the examination of results. Chapter six is appropriately entitled "Around the Corner," as it provides the reader with a glimpse of the future of subject access for the Web. Text mining, visualization, machine-aided indexing, and other topics are raised here to whet the reader's appetite for what is yet to come. As the author herself notes in these final pages, librarians will likely increase the depth of their collaboration with software engineers, knowledge managers and others outside of the traditional library community, and thereby push the boundaries of subject access for the digital world. This final chapter leaves this reviewer wanting a second volume of the book, one that might explore these additional topics, as they evolve over the coming years. One characteristic of any book that addresses trends related to the Internet is how quickly the text becomes dated. However, as the author herself asserts, there are core principles related to subject analysis that stand the test of time, leaving the reader with a text that may be generalized well beyond the publication date. In this, Schwartz's text is similar to other recent publications (e.g., Jakob Nielsen's Web Usability, also published in 2001) that acknowledge the mutability of the Web, and therefore discuss core principles and issues that may be applied as the medium itself evolves. This approach to the writing makes this a useful book for those teaching in the areas of subject analysis, information retrieval and Web development for possible consideration as a course text. Although the websites used here may need to be supplemented with more current examples in the classroom, the core content of the book will be relevant for many years to come. Although one might expect that any book taking subject access as its focus world, itself, be easy to navigate, this is not always the case. In this text, however, readers will be pleased to find that no small detail in content access has been spared. The subject Index is thorough and well-crafted, and the inclusion of an exhaustive author index is particularly useful for quick reference. In addition, the table of contents includes sub-themes for each chapter, and a complete table of figures is provided. While the use of colour figures world greatly enhance the text, all black-andwhite images are clear and sharp, a notable fact given that most of the figures are screen captures of websites or database entries. In addition, the inclusion of comprehensive reference lists at the close of each chapter makes this a highly readable text for students and instructors alike; each section of the book can stand as its own "expert review" of the topic at hand. In both content and structure this text is highly recommended. It certainly meets its intended goal of providing a timely introduction to the methods and problems of subject access in the Web environment, and does so in a way that is readable, interesting and engaging."

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Footnote

Rez. in: nfd - Information Wissenschaft und Praxis 54(2003) H.7, S.440-442 (R. Fugmann): "Das Buch beginnt mit dem Kapitel "Myths about Indexing" und mit der Nennung von weit verbreiteten Irrtümern über das Indexieren, und zwar vorrangig über das Registermachen. Mit einem einzigen Satz ist die Problematik treffend skizziert, welcher das Buch gewidmet ist: "With the development of electronic documents, it has become possible to store very large amounts of information; but storage is not of much use without the capability to retrieve, to convert, transfer and reuse the information". Kritisiert wird die weit verbreitet anzutreffende Ansicht, das Indexieren sei lediglich eine Sache vom "picking out words from the text or naming objects in images and using those words as index headings". Eine solche Arbeitsweise führt jedoch nicht zu Registern, sondern zu Konkordanzen (d.h. zu alphabetischen Fundstellenlisten für Textwörter) und"... is entirely dependent an the words themselves and is not concerned with the ideas behind them". Das Sammeln von Information ist einfach. Aber die (Wieder-) Auffindbarkeit herzustellen muss gelernt werden, wenn mehr ermöglicht werden soll als lediglich das Wiederfinden von Texten, die man in allen Einzelheiten noch genau in Erinnerung behalten hat (known-item searches, questions of recall), die Details der sprachlichen Ausdrucksweise für die gesuchten Begriffe eingeschlossen. Die Verfasserin beschreibt aus ihrer großen praktischen Erfahrung, welche Schritte hierzu auf der gedanklichen und technischen Ebene unternommen werden müssen. Zu den erstgenannten Schritten rechnet die Abtrennung von Details, welche nicht im Index vertreten sein sollten ("unsought terms"), weil sie mit Sicherheit kein Suchziel darstellen werden und als "false friends" zur Überflutung des Suchenden mit Nebensächlichkeiten führen würden, eine Entscheidung, welche nur mit guter Sachkenntnis gefällt werden kann. All Dasjenige hingegen, was in Gegenwart und Zukunft (!) ein sinnvolles Suchziel darstellen könnte und "sufficiently informative" ist, verdient ein Schlagwort im Register. Man lernt auch durch lehrreiche Beispiele, wodurch ein Textwort unbrauchbar für das Register wird, wenn es dort als (schlechtes) Schlagwort erscheint, herausgelöst aus dem interpretierenden Zusammenhang, in welchen es im Text eingebettet gewesen ist. Auch muss die Vieldeutigkeit bereinigt werden, die fast jedem natursprachigen Wort anhaftet. Sonst wird der Suchende beim Nachschlagen allzu oft in die Irre geführt, und zwar um so öfter, je größer ein diesbezüglich unbereinigter Speicher bereits geworden ist.
Der Zugang zum Informationsspeicher ist auch von verwandten Begriffen her zu gewährleisten, denn der Suchende lässt sich gern mit seiner Fragestellung zu allgemeineren und vor allem zu spezifischeren Begriffen leiten. Verweisungen der Art "siehe auch" dienen diesem Zweck. Der Zugang ist auch von unterschiedlichen, aber bedeutungsgleichen Ausdrücken mithilfe einer Verweisung von der Art "siehe" zu gewährleisten, denn ein Fragesteller könnte sich mit einem von diesen Synonymen auf die Suche begeben haben und würde dann nicht fündig werden. Auch wird Vieles, wofür ein Suchender sein Schlagwort parat hat, in einem Text nur in wortreicher Umschreibung und paraphrasiert angetroffen ("Terms that may not appear in the text but are likely to be sought by index users"), d.h. praktisch unauffindbar in einer derartig mannigfaltigen Ausdrucksweise. All dies sollte lexikalisch ausgedrückt werden, und zwar in geläufiger Terminologie, denn in dieser Form erfolgt auch die Fragestellung. Hier wird die Grenze zwischen "concept indexing" gegenüber dem bloßen "word indexing" gezogen, welch letzteres sich mit der Präsentation von nicht interpretierten Textwörtern begnügt. Nicht nur ist eine solche Grenze weit verbreitet unbekannt, ihre Existenz wird zuweilen sogar bestritten, obwohl doch ein Wort meistens viele Begriffe ausdrückt und obwohl ein Begriff meistens durch viele verschiedene Wörter und Sätze ausgedrückt wird. Ein Autor kann und muss sich in seinen Texten oft mit Andeutungen begnügen, weil ein Leser oder Zuhörer das Gemeinte schon aus dem Zusammenhang erkennen kann und nicht mit übergroßer Deutlichkeit (spoon feeding) belästigt sein will, was als Unterstellung von Unkenntnis empfunden würde. Für das Retrieval hingegen muss das Gemeinte explizit ausgedrückt werden. In diesem Buch wird deutlich gemacht, was alles an außertextlichem und Hintergrund-Wissen für ein gutes Indexierungsergebnis aufgeboten werden muss, dies auf der Grundlage von sachverständiger und sorgfältiger Interpretation ("The indexer must understand the meaning of a text"). All dies lässt gutes Indexieren nicht nur als professionelle Dienstleistung erscheinen, sondern auch als Kunst. Als Grundlage für all diese Schritte wird ein Thesaurus empfohlen, mit einem gut strukturierten Netzwerk von verwandtschaftlichen Beziehungen und angepasst an den jeweiligen Buchtext. Aber nur selten wird man auf bereits andernorts vorhandene Thesauri zurückgreifen können. Hier wäre ein Hinweis auf einschlägige Literatur zur Thesaurus-Konstruktion nützlich gewesen.

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Abstract

This book examines a core topic in traditional librarianship: classification. Classification has often been treated as a sub-set of cataloguing and indexing with relatively few basic textbooks concentrating solely an the theory and practice of classifying resources. This book attempts to redress the balance somewhat. The aim is to demystify a complex subject, by providing a sound theoretical underpinning, together with practical advice and promotion of practical skills. The text is arranged into five chapters: Chapter 1: Classification in theory and practice. This chapter explores theories of classification in broad terms and then focuses an the basic principles of library classification, introducing readers to technical terminology and different types of classification scheme. The next two chapters examine individual classification schemes in depth. Each scheme is explained using frequent examples to illustrate basic features. Working through the exercises provided should be enjoyable and will enable readers to gain practical skills in using the three most widely used general library classification schemes: Dewey Decimal Classification, Library of Congress Classification and Universal Decimal Classification. Chapter 2: Classification schemes for general collections. Dewey Decimal and Library of Congress classifications are the most useful and popular schemes for use in general libraries. The background, coverage and structure of each scheme are examined in detail in this chapter. Features of the schemes and their application are illustrated with examples. Chapter 3: Classification schemes for specialist collections. Dewey Decimal and Library of Congress may not provide sufficient depth of classification for specialist collections. In this chapter, classification schemes that cater to specialist needs are examined. Universal Decimal Classification is superficially very much like Dewey Decimal, but possesses features that make it a good choice for specialist libraries or special collections within general libraries. It is recognised that general schemes, no matter how deep their coverage, may not meet the classification needs of some collections. An answer may be to create a special classification scheme and this process is examined in detail here. Chapter 4: Classifying electronic resources. Classification has been reborn in recent years with an increasing need to organise digital information resources. A lot of work in this area has been conducted within the computer science discipline, but uses basic principles of classification and thesaurus construction. This chapter takes a broad view of theoretical and practical issues involved in creating classifications for digital resources by examining subject trees, taxonomies and ontologies. Chapter 5: Summary. This chapter provides a brief overview of concepts explored in depth in previous chapters. Development of practical skills is emphasised throughout the text. It is only through using classification schemes that a deep understanding of their structure and unique features can be gained. Although all the major schemes covered in the text are available an the Web, it is recommended that hard-copy versions are used by those wishing to become acquainted with their overall structure. Recommended readings are supplied at the end of each chapter and provide useful sources of additional information and detail. Classification demands precision and the application of analytical skills, working carefully through the examples and the practical exercises should help readers to improve these faculties. Anyone who enjoys cryptic crosswords should recognise a parallel: classification often involves taking the meaning of something apart and then reassembling it in a different way.

Footnote

The heart of the book lies in its exceptionally clear and well illustrated explanation of each of the classification schemes. These are presented comprehensively, but also in gratifying detail, down to the meaning of the various enigmatic notes and notations, such as "config" or "class elsewhere" notes, each simply explained, as if a teacher were standing over your shoulder leading you through it. Such attention at such a fine level may seem superfluous or obvious to a seasoned practitioner, but it is in dealing with such enigmatic details that we find students getting discouraged and confused. That is why I think this would be an excellent text, especially as a book to hold in one hand and the schedules themselves in the other. While the examples throughout and the practical exercises at the end of each chapter are slanted towards British topics, they are aptly Chosen and should present no problem of understanding to a student anywhere. As mentioned, this is an unabashedly practical book, focusing an classification as it has been and is presently applied in libraries for maintaining a "useful book order." It aims to develop those skills that would allow a student to learn how it is done from a procedural rather than a critical perspective. At times, though, one wishes for a bit more of a critical approach - one that would help a student puzzle through some of the ambiguities and issues that the practice of classification in an increasingly global rather than local environment entails. While there is something to be said for a strong foundation in existing practice (to understand from whence it all came), the author essentially accepts the status quo, and ventures almost timidly into any critique of the content and practice of existing classification schemes. This lack of a critical analysis manifests itself in several ways: - The content of the classification schemes as described in this book is treated as fundamentally "correct" or at least "given." This is not to say the author doesn't recognize anomalies and shortcomings, but that her approach is to work with what is there. Where there are logical flaws in the knowledge representation structures, the author takes the approach that there are always tradeoffs, and one must simply do the best one can. This is certainly true for most people working in libraries where the choice of scheme is not controlled by the classifier, and it is a wonderful skill indeed to be able to organize creatively and carefully despite imperfect systems. The approach is less convincing, however, when it is also applied to emerging or newly developed schemes, such as those proposed for organizing electronic resources. Here, the author could have been a bit braver in at least encouraging less normative approaches. - There is also a lingering notion that classification is a precise science. For example the author states (p. 13): Hospitality is the ability to accommodate new topics and concepts in their correct place in the schedules ... Perfect hospitality world mean that every new subject could be accommodated in the most appropriate place in the schedules. In practice, schemes do manage to fit new subjects in, but not necessarily in their most appropriate place. It world have been helpful to acknowledge that for many complex subjects there is no one appropriate place. The author touches an this dilemma, but in passing, and not usually when she is providing practical pointers.

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Footnote

Essential Classification is also an exercise book. Indeed, it contains a number of practical exercises and activities in every chapter, along with suggested answers. Unfortunately, the answers are too often provided without the justifications and explanations that students would no doubt demand. The author has taken great care to explain all technical terms in her text, but formal definitions are also gathered in an extensive 172-term Glossary; appropriately, these terms appear in bold type the first time they are used in the text. A short, very short, annotated bibliography of standard classification textbooks and of manuals for the use of major classification schemes is provided. A detailed 11-page index completes the set of learning aids which will be useful to an audience of students in their effort to grasp the basic concepts of the theory and the practice of document classification in a traditional environment. Essential Classification is a fine textbook. However, this reviewer deplores the fact that it presents only a very "traditional" view of classification, without much reference to newer environments such as the Internet where classification also manifests itself in various forms. In Essential Classification, books are always used as examples, and we have to take the author's word that traditional classification practices and tools can also be applied to other types of documents and elsewhere than in the traditional library. Vanda Broughton writes, for example, that "Subject headings can't be used for physical arrangement" (p. 101), but this is not entirely true. Subject headings can be used for physical arrangement of vertical files, for example, with each folder bearing a simple or complex heading which is then used for internal organization. And if it is true that subject headings cannot be reproduced an the spine of [physical] books (p. 93), the situation is certainly different an the World Wide Web where subject headings as metadata can be most useful in ordering a collection of hot links. The emphasis is also an the traditional paperbased, rather than an the electronic version of classification schemes, with excellent justifications of course. The reality is, however, that supporting organizations (LC, OCLC, etc.) are now providing great quality services online, and that updates are now available only in an electronic format and not anymore on paper. E-based versions of classification schemes could be safely ignored in a theoretical text, but they have to be described and explained in a textbook published in 2005. One last comment: Professor Broughton tends to use the same term, "classification" to represent the process (as in classification is grouping) and the tool (as in constructing a classification, using a classification, etc.). Even in the Glossary where classification is first well-defined as a process, and classification scheme as "a set of classes ...", the definition of classification scheme continues: "the classification consists of a vocabulary (...) and syntax..." (p. 296-297). Such an ambiguous use of the term classification seems unfortunate and unnecessarily confusing in an otherwise very good basic textbook an categorization of concepts and subjects, document organization and subject representation."

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Abstract

Many information professionals working in small units today fail to find the published tools for subject-based organization that are appropriate to their local needs, whether they are archivists, special librarians, information officers, or knowledge or content managers. Large established standards for document description and organization are too unwieldy, unnecessarily detailed, or too expensive to install and maintain. In other cases the available systems are insufficient for a specialist environment, or don't bring things together in a helpful way. A purpose built, in-house system would seem to be the answer, but too often the skills necessary to create one are lacking. This practical text examines the criteria relevant to the selection of a subject-management system, describes the characteristics of some common types of subject tool, and takes the novice step by step through the process of creating a system for a specialist environment. The methodology employed is a standard technique for the building of a thesaurus that incidentally creates a compatible classification or taxonomy, both of which may be used in a variety of ways for document or information management. Key areas covered are: What is a thesaurus? Tools for subject access and retrieval; what a thesaurus is used for? Why use a thesaurus? Examples of thesauri; the structure of a thesaurus; thesaural relationships; practical thesaurus construction; the vocabulary of the thesaurus; building the systematic structure; conversion to alphabetic format; forms of entry in the thesaurus; maintaining the thesaurus; thesaurus software; and; the wider environment. Essential for the practising information professional, this guide is also valuable for students of library and information science.