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Searching Indexes and Databases

Searching Indexes and Databases. Sajjad ur Rehman. Why Searching?. Study and learning Academic and theoretical research Developmental research Professional work Policy and decision making. Search Dynamic. Interaction among the following: User and his/her need

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Searching Indexes and Databases

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  1. Searching Indexes and Databases Sajjad ur Rehman

  2. Why Searching? • Study and learning • Academic and theoretical research • Developmental research • Professional work • Policy and decision making

  3. Search Dynamic • Interaction among the following: • User and his/her need • Source: index/database/bibliography/catalog • Intermediary: could be a librarian, information professional, subject specialist or the user

  4. Coverage of Indexes or Databases • Subject area/s • Material type/s • Region • Period • Content: index or abstract

  5. Indexing and Abstracting Services • Development factors • exponential growth in knowledge, disciplines and interdisciplinary research • Growth of periodical literature, conference proceedings, technical and research reports, Web sites • Technological imperatives: emphasis on data processing, indexing, and retrieval (contd.)

  6. Indexing and Abstracting Services • Development of information systems and utilities • User needs: users getting more and more sophisticated • Diversity of media and versatility in access and approaches

  7. Development of Indexing and Abstracting Services • General magazine indexes • Trade publishing activity: Wilson Indexes • Role of learned bodies in specialized domains • Patronage of the US government • Development of Information systems

  8. Conversion of Indexes into Electronic Mode • First phase: print indexes and abstracts • Second phase: retrieval research and indexing innovations • Third phase: use of computing power for printing and distribution • Fourth Phase: use of digital files for batch searching and online searching (contd.)

  9. Conversion of Indexes into Electronic Mode • Fifth phase: Development of online literature searching systems, vendors, telecommunication systems • Sixth phase: CD-ROM revolution and resulting output diversity • Seventh phase: Use of Internet technology and Web sites; full-text

  10. Search Strategy • Determining user needs • physical meeting • questionnaire and interview based on forms • feedback • Selection of systems/databases • scope and coverage • treatment

  11. Search Strategy (2) • Determining search type • keyword search • controlled vocabulary • field specific • known item • Search parameters • Form of material, currency, language, extent, access

  12. Search Strategy (3) • Type of search • exhaustive, comprehensive, moderate, specific • Strategy formulation • facets • terminology • combination/Venn daigram

  13. Search Strategy (4) • Use of operators • Boolean • Proximity • Truncation • Conduct of search • Evaluation • Refinement

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