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Unit Four: Online Catalog: OPAC

Unit Four: Online Catalog: OPAC. Question. Library Catalog (Web version) Topic: “youth suicide” How many records come up? ____ Expand search results by combining “youth suicide” with a synonym like “adolescent suicide.” How many

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Unit Four: Online Catalog: OPAC

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  1. Unit Four: Online Catalog: OPAC

  2. Question • Library Catalog (Web version) • Topic: “youth suicide” How many records come up? ____ • Expand search results by combining “youth suicide” with a synonym like “adolescent suicide.” How many records appear now? ____

  3. Objectives • Online library catalog • What it is • What does it contain? • Two interfaces • How it works

  4. What It Is • Search engine and database of materials the library owns • Identifies a source and tells you where to find it • Each library unique, each online catalog unique

  5. What Does It Contain? • Books (mostly) • Comprehensive, in-depth sources • Diverse viewpoints, balance arguments • Summarize major research to date • Journal titles (but not articles) • Government documents, videos, sound recordings, map records

  6. Two Interfaces • Text version (telnet) • Connect via Web link from library page • Web • Connect via Web link from library page

  7. Text Version • Text or “telnet” connection • Requires login (OPAC) • Holdings stored in digital format • Interface is menu-based • Keyboard (arrows/function keys) used to move, select choices

  8. Web Version • Web connection • No login, just link click • Holdings stored in html digital format • Interface based on graphics, hyperlinks • Use links to select choices

  9. Web Vs. Telnet • Web version • + keyword searches broader (Looks for words in more fields) • + lets you search more SUNY libraries • + easier to use • - not as quick • - does not include books “on order”

  10. How an Online Catalog Works • Works like any database • Content based on “records” • what the database contains • Records composed of “fields” • what the record contains • Search Interface that allows user to find data

  11. Records • Contents of a database • Books • Journal Articles • Reports, Gov documents • Videos, Recordings • Personal resources

  12. Fields • Components of a record • Author • Title • Notes (abstract) • Date, publisher • Subject field • You can search one field only or several at once (keyword)

  13. Search Interface • Let’s you tell computer how to search • Which words to use • Which fields to look in • Hatha yoga in title, in subject heading, in keyword • Expand or reduce results (Boolean searching) • Television OR TV • TV AND children • Provides structure for searches • Search box • Menu options • Help

  14. How Our Online Catalog Works • Use menu or buttons for keyword or single field searching • Expand or reduce search results with AND or OR • Combine fields by using “qualifiers” • au author • ti title • sh subject heading • au Hemingway and ti sun also rises

  15. Library Catalog – Text Version SEARCH OPTIONS AU = AUTHOR TI = TITLE <----- KE = KEYWORD CN = CALL NUMBER SH = SUBJECT HEADING DT = DOCUMENT TYPE Press F10 to access HELP ENTER YOUR SEARCH : youth suicide

  16. Library Catalog (Web Version) 1. Enter a word or phrase to search 2. Choose a search type KeywordSubject Author Title Searching Tips Youth suicide

  17. Question • Library Catalog (Web version) • Topic: “youth suicide” How many records come up? 17 • Expand search results by combining “youth suicide” with a synonym like “adolescent suicide.” How many records appear now? 29

  18. Subject and Keyword Searching • Keyword searches several fields in a document record • Author Title Subject Notes (Abstract) • Subject heading searches only “subject” field • Sometimes called “subject heading”, “descriptor”, “identifier” • Subject headings must be known, guessed, or discovered to make a subject search successful

  19. Locating What You Find • “Call numbers” locate an item physically • A-F - first floor • G-P -second floor • Q-Z -third floor • Letters reflect subject • DB -Central European history • PG -Russian literature

  20. Library of Congress (LC) Classification System • A – General works M – Music • B – Philosophy N – Visual Arts • C - History (Biog) P – Lang/Lit • D – History – general Q – Sciences • E-F – History (American R – Medicine • G – Geography S – Agriculture • H – Social Sciences T – Technology • J – Political Science U – Military science • K – Law V – Naval science • L - Education

  21. LC Classification and Categories • H – Social sciences • HD – Economic history and conditions • HD 232- HD473 –-Industry • HD 233- HD236 –---Household industry • HD 236.3 ------------- Telecommunications • Move from broad to specific

  22. Call Numbers • Detailed letter number combination to let you find individual book • H – Social sciences (and business) • HD – Economic history and conditions • HD 232- HD473 – Industry • HD 233- HD236 – Household industry • HD 236.3 - Telecommunications HD236.3.L86 “Topics in Teleworking” by John Lenox

  23. This Week’s Assignment • Searchthe Online Catalog • Field searching by • Author, title, subject, keyword, document type • Combination searching using • AND, OR • Qualifiers au ti sh dt

  24. TILT Lite Reminder • Complete the TILT Lite tutorial • Introduction • Module 1 • Access TILT Lite via LIB101 Web page • Complete quiz at end of tutorial • Hand in quiz results to me at next class

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