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Bibliographic Records, Data Structures and Databases (Cont.)

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Presentation on theme: "Bibliographic Records, Data Structures and Databases (Cont.)"— Presentation transcript:

1 Bibliographic Records, Data Structures and Databases (Cont.)
University of California, Berkeley School of Information Management and Systems SIMS 202: Information Organization and Retrieval 8/28/97 Information Organization and Retrieval

2 Information Organization and Retrieval
Today MELVYL access issues Review of last time More on bibliographic description and rules Structured and unstructured data and information. Files and Databases 8/28/97 Information Organization and Retrieval

3 Information Organization and Retrieval
Review Metadata systems Bibliographic information Bibliographic records 8/28/97 Information Organization and Retrieval

4 Type of Metadata systems and standards
Naming and ID systems Bibliographic description Texts Music Images and objects Numeric Data Geospatial Data Collections 8/28/97 Information Organization and Retrieval

5 Bibliographic Information
Describes documents What is a document (revisited)? Choice of descriptive elements and content of those elements typically governed by a set of rules: AACR II Elements coded in standard ways for transmission. MARC 8/28/97 Information Organization and Retrieval

6 Goals of Descriptive Cataloging
1. To enable a person to find a document of which the author, or the title, or the subject is known 2. To show what a library has by a given author on a given subject (and related subjects) in a given kind (or form) of literature. 3. To assist in the choice of a document as to its edition (bibliographically) as to its character (literary or topical) Charles A. Cutter, 1876 8/28/97 Information Organization and Retrieval

7 Information Organization and Retrieval
AACRII Sources of Information ISBD areas Choice of Access Points 8/28/97 Information Organization and Retrieval

8 Sources of Information
Each different type of material has a preferred location for deriving information about it. Books and printed material Title page Cartographic Materials (Maps, globes, etc) The map itself, or containers, stands, etc. Sound recordings Disc label, cassette label, etc. 8/28/97 Information Organization and Retrieval

9 Information Organization and Retrieval
ISBD Areas Title and Statement of Responsibility Edition Material or type of publication specification Publication, Distribution (etc.) Physical Description Series Notes Standard Numbers 8/28/97 Information Organization and Retrieval

10 Information Organization and Retrieval
MELVYL Access Assignment 2 is best done by using the TELNET program to do command-line searching. MELVYL Address : melvyl.ucop.edu MARC format only available in TELNET mode 8/28/97 Information Organization and Retrieval

11 Information Organization and Retrieval
ISBD Punctuation Title Proper (GMD) = Parallel title : other title info / First statement of responsibility ; others. -- Edition information. -- Material. -- Place of Publication : Publisher Name, Date. -- Material designation and extent ; Dimensions of item. -- (Title of Series / Statement of responsibility). -- Notes. -- Standard numbers: terms of availability (qualifications). 8/28/97 Information Organization and Retrieval

12 Information Organization and Retrieval
Bibliographic Record Introduction to cataloging and classification / Bohdan S. Wynar. -- 8th ed. / Arlene G. Taylor. -- Englewood, Colo. : Libraries Unlimited, (Library science text series). 8/28/97 Information Organization and Retrieval

13 Information Organization and Retrieval
Dublin Core TITLE: Introduction to cataloging and classification CREATOR: Taylor, Arlene G. OTHER CONTRIBUTOR: Wynar, Bohdan S. DATE: 1992 FORMAT: BOOK LANGUAGE: ENG PAGES: 633 PUBLISHER: Libraries Unlimited SUBJECT: Cataloging. SUBJECT: subject cataloging. SUBJECT: Classification -- Books DESCRIPTION: Textbook on cataloging and classification RESOURCE TYPE: text.monograph RESOURCE IDENTIFIER: (ISBN) 8/28/97 Information Organization and Retrieval

14 Information Organization and Retrieval
RFC 1807 BIB-VERSION:: CS-TR-v2.1 ID:: UCB//123456 ENTRY:: September 9, 1997 TYPE:: BOOK TITLE:: Introduction to cataloging and classification AUTHOR:: Wynar, Bohdan S. AUTHOR:: Taylor, Arlene G. DATE:: 1992 PAGES:: 633 COPYRIGHT:: Libraries Unlimited, 1992 SERIES:: Library Science Text Series END:: UCB//123456 8/28/97 Information Organization and Retrieval

15 Information Organization and Retrieval
Minimal TEI Header <teiHeader> <fileDesc> <titleStmt> <title> Introduction to cataloging and classification</title> <respStmt><name>Bohdan S. Wynar<resp> 8th edition by</resp> <name>Arlene G. Taylor</name> </respStmt> </titleStmt> <publicationStmt> <distributor>Libraries Unlimited</distributor> </publicationStmt> <sourceDesc> <bibl> Introduction to cataloging and classification / Bohdan S. Wynar. -- 8th ed. / Arlene G. Taylor. -- Englewood, Colo. : Libraries Unlimited, 1992. </bibl> </sourceDesc> </fileDesc> 8/28/97 Information Organization and Retrieval

16 Information Organization and Retrieval
MARC Record (display) ID:DCLC B RTYP:c ST:p FRN: MS:c EL: AD: CC:9110 BLT:am DCF:a CSC: MOD: SNR: ATC: UD: CP:cou L:eng INT: GPC: BIO: FIC:0 CON:b PC:s PD:1992/ REP: CPI:0 FSI:0 ILC:a II:1 MMD: OR: POL: DM: RR: COL: EML: GEN: BSE: (cloth) (paper) DLC$cDLC$dDLC Z693$b.W $220 Wynar, Bohdan S. Introduction to cataloging and classification /$cBohdan S. Wynar. th ed. /$bArlene G. Taylor. Englewood, Colo. :$bLibraries Unlimited,$c1992. xvii, 633 p. :$bill. ;$c24 cm. Library science text series Includes bibliographical references (p ) and index. Cataloging. Subject cataloging. Classification$xBooks. Anglo-American cataloguing rules. Taylor, Arlene G.,$d1941- 8/28/97 Information Organization and Retrieval

17 Choice of Access Points
Title(s) (Always main title) Uniform titles? Main Entry?? Form of name? Added Entries Series Titles Identifying Numbers We will return to access points (particularly authority files and topical or subject access) 8/28/97 Information Organization and Retrieval

18 Information Organization and Retrieval
Files and Databases File: A collection of records or documents dealing with one organization, person, area or subject. (Rowley) Manual (paper) files Computer files Database: A collection of similar records with relationships between the records. (Rowley) bibliographic, statistical, business data, images, etc. 8/28/97 Information Organization and Retrieval

19 Information Organization and Retrieval
Database A Database is a collection of stored operational data used by the application systems of some particular enterprise. (C.J. Date) Paper “Databases” Still contain a large portion of the world’s knowledge File-Based Data Processing Systems Early batch processing of (primarily) business data Database Management Systems (DBMS) 8/28/97 Information Organization and Retrieval

20 Information Organization and Retrieval
Database Data Models Hierarchical Model Similar to data structures in programming languages. Books (id, title) Publisher Subjects Authors (first, last) 8/28/97 Information Organization and Retrieval

21 Information Organization and Retrieval
Database Data Models Network Model Provides for single entries of data and navigational “links” through chains of data. Subjects Books Authors Publishers 8/28/97 Information Organization and Retrieval

22 Information Organization and Retrieval
Database Data Models Relational Model Provides a conceptually simple model for data as relations (typically considered “tables”) with all data visible. 8/28/97 Information Organization and Retrieval

23 Information Organization and Retrieval
Database Data Models Object Oriented Data Model Encapsulates data and operations as “Objects” Books (id, title) Publisher Subjects Authors (first, last) 8/28/97 Information Organization and Retrieval

24 Database Design Process
Application 1 Application 2 Application 3 Application 4 External Model External Model External Model External Model Application 1 Conceptual requirements Application 2 Conceptual requirements Conceptual Model Logical Model Internal Model Application 3 Conceptual requirements Application 4 Conceptual requirements 8/28/97 Information Organization and Retrieval

25 Database Design Process
Conceptual Requirements Systems Analysis Process Examine all of the information sources used in existing applications Identify the characteristics of each data element numeric text date/time etc. Examine the tasks carried out using the information Examine results or reports created using the information 8/28/97 Information Organization and Retrieval

26 Database Design Process
Conceptual Model Merge the collective needs of all applications Determine what Entities are being used Some object about which information is to maintained What are the Attributes of those entities? Properties or characteristics of the entity What attributes uniquely identify the entity What are the Relationships between entities How the entities interact with each other? 8/28/97 Information Organization and Retrieval

27 Database Design Process
Logical Model How is each entity and relationship represented in the Data Model of the DBMS Hierarchic? Network? Relational? Object-Oriented? 8/28/97 Information Organization and Retrieval

28 Database Design Process
Internal Model Choices of index file structure Choices of data storage formats Choices of disk layout 8/28/97 Information Organization and Retrieval

29 Database Design Process
External Model User views of the integrated database Making the old (or updated) applications work with the new database design 8/28/97 Information Organization and Retrieval

30 Information Organization and Retrieval
Next Time Conceptual Design of Databases Entity-Relationship Diagrams 8/28/97 Information Organization and Retrieval


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