Evaluating and filtering electronic information Tom Roper, Librarian RCVS Wellcome Library
Evaluating and filtering electronic information: the problem <ul><li>information explosion: biomedical journals increasing...
Growth of the Internet <ul><li>112.75 million people online (February 98) </li></ul><ul><ul><li>(Source: NUA Internet Serv...
The problems of electronic media <ul><li>Contextual clues are absent </li></ul><ul><li>Speed of publication </li></ul>Eval...
Searching on the Web <ul><li>help or hindrance? </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3...
The problem of misinformation <ul><li>Imppicattore, P et al: Reliability of health information for the public on the world...
The veterinary context <ul><li>emphasis on life-long learning, CPD </li></ul><ul><li>development of veterinary informatics...
Conventional sources <ul><li>defined well-understood criteria for evaluation </li></ul><ul><li>are these criteria applicab...
Filtering in a bibliographic database <ul><li>Developments in Medline </li></ul><ul><ul><li>new document types </li></ul><...
New insights into evaluation <ul><li>Evidence-based medicine movement </li></ul>Evaluating and Filtering Electronic Inform...
The hierarchy of evidence (1) <ul><li>Best Evidence </li></ul><ul><li>No evidence </li></ul><ul><li>Randomised controlled ...
The hierarchy of evidence (2) Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
Two aspects: relevance and quality <ul><li>relevance requires filtering </li></ul><ul><li>quality requires evaluation crit...
Elements of resource evaluation <ul><li>Context </li></ul><ul><li>Content </li></ul><ul><li>Access </li></ul>Evaluating an...
Context <ul><li>scope: is the subject coverage appropriate? </li></ul><ul><li>audience: public or academic </li></ul><ul><...
Context (2) <ul><li>Authority (continued) </li></ul><ul><ul><ul><li>moderated (if discussion list) </li></ul></ul></ul><ul...
Content <ul><li>coverage </li></ul><ul><li>accuracy </li></ul><ul><li>currency </li></ul><ul><li>uniqueness </li></ul>Eval...
Access <ul><li>accessibility and usability </li></ul><ul><li>charging policy </li></ul><ul><li>special requirements </li><...
Evaluative services/ Subject Gateways <ul><li>OMNI: www.omni.ac.uk </li></ul><ul><ul><li>E-lib programme </li></ul></ul><u...
Metadata <ul><li>Data about data: HTML meta tags </li></ul><ul><ul><li>Dublin core and Warwick framework </li></ul></ul><u...
Ratings <ul><li>Jadad, A R Rating health information on the Internet JAMA 1998 279:611-14 </li></ul><ul><ul><li>Identified...
Other reviewing tools <ul><li>all the above value coolness over content </li></ul><ul><ul><li>Excite Web Reviews </li></ul...
Some other criteria: <ul><li>British Healthcare Internet Association Quality Standards for Medical Publishing on the Web: ...
A solution <ul><li>VAHIC (Veterinary and Animal Health Information Consortium) </li></ul><ul><ul><li>AHT, CABI, Moredun, R...
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Evaluating and filtering electronic information

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Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998

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Evaluating and filtering electronic information

  1. 1. Evaluating and filtering electronic information Tom Roper, Librarian RCVS Wellcome Library
  2. 2. Evaluating and filtering electronic information: the problem <ul><li>information explosion: biomedical journals increasing both in number and quantity of articles </li></ul><ul><li>electronic publishing: opened up to the world, especially on the Web </li></ul><ul><li>Gutenberg or alphabet </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  3. 3. Growth of the Internet <ul><li>112.75 million people online (February 98) </li></ul><ul><ul><li>(Source: NUA Internet Services: http://www.nua.ie/) </li></ul></ul><ul><ul><ul><li>of these 20 million in Europe and 70 million in North America </li></ul></ul></ul><ul><li>each one potentially a publisher </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  4. 4. The problems of electronic media <ul><li>Contextual clues are absent </li></ul><ul><li>Speed of publication </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  5. 5. Searching on the Web <ul><li>help or hindrance? </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  6. 6. The problem of misinformation <ul><li>Imppicattore, P et al: Reliability of health information for the public on the world wide web BMJ 1997 314: 1875-9 </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  7. 7. The veterinary context <ul><li>emphasis on life-long learning, CPD </li></ul><ul><li>development of veterinary informatics </li></ul><ul><li>changes in political, economic, social contexts </li></ul><ul><li>changes in animal populations </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  8. 8. Conventional sources <ul><li>defined well-understood criteria for evaluation </li></ul><ul><li>are these criteria applicable to electronic documents? </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  9. 9. Filtering in a bibliographic database <ul><li>Developments in Medline </li></ul><ul><ul><li>new document types </li></ul></ul><ul><ul><li>better veterinary coverage </li></ul></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  10. 10. New insights into evaluation <ul><li>Evidence-based medicine movement </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  11. 11. The hierarchy of evidence (1) <ul><li>Best Evidence </li></ul><ul><li>No evidence </li></ul><ul><li>Randomised controlled trials </li></ul><ul><li>Non-randomised controlled trials </li></ul><ul><li>Well designed cohort or case-control analysis </li></ul><ul><li>Opinions of respected authorities, case reports, descriptive studies, reports of expert committees </li></ul><ul><li>Misrepresentation, fraud </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  12. 12. The hierarchy of evidence (2) Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  13. 13. Two aspects: relevance and quality <ul><li>relevance requires filtering </li></ul><ul><li>quality requires evaluation criteria </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  14. 14. Elements of resource evaluation <ul><li>Context </li></ul><ul><li>Content </li></ul><ul><li>Access </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  15. 15. Context <ul><li>scope: is the subject coverage appropriate? </li></ul><ul><li>audience: public or academic </li></ul><ul><li>authority: </li></ul><ul><ul><ul><li>responsibility </li></ul></ul></ul><ul><ul><ul><li>qualifications </li></ul></ul></ul><ul><ul><ul><li>publisher </li></ul></ul></ul><ul><ul><ul><li>sources </li></ul></ul></ul><ul><ul><ul><li>copyright </li></ul></ul></ul><ul><ul><ul><li>sponsorship </li></ul></ul></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  16. 16. Context (2) <ul><li>Authority (continued) </li></ul><ul><ul><ul><li>moderated (if discussion list) </li></ul></ul></ul><ul><ul><ul><li>refereed (if electronic journals) </li></ul></ul></ul><ul><ul><ul><li>indexed/abstracted (if electronic journals) </li></ul></ul></ul><ul><ul><ul><li>reviewed elsewhere (reputably?) </li></ul></ul></ul><ul><ul><ul><li>recognised by a professional association/learned society/ specialist information service </li></ul></ul></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  17. 17. Content <ul><li>coverage </li></ul><ul><li>accuracy </li></ul><ul><li>currency </li></ul><ul><li>uniqueness </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  18. 18. Access <ul><li>accessibility and usability </li></ul><ul><li>charging policy </li></ul><ul><li>special requirements </li></ul><ul><li>software </li></ul><ul><li>copyright </li></ul><ul><li>language </li></ul><ul><li>design and layout </li></ul><ul><li>user support </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  19. 19. Evaluative services/ Subject Gateways <ul><li>OMNI: www.omni.ac.uk </li></ul><ul><ul><li>E-lib programme </li></ul></ul><ul><li>NetVet: www.avma.org </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  20. 20. Metadata <ul><li>Data about data: HTML meta tags </li></ul><ul><ul><li>Dublin core and Warwick framework </li></ul></ul><ul><ul><li>integration with established cataloguing practices (AACR2, ISBD) </li></ul></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  21. 21. Ratings <ul><li>Jadad, A R Rating health information on the Internet JAMA 1998 279:611-14 </li></ul><ul><ul><li>Identified 47 rating instruments </li></ul></ul><ul><ul><li>14 described the criteria used for ratings </li></ul></ul><ul><ul><li>of those 14 only 5 provided instructions on their use </li></ul></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  22. 22. Other reviewing tools <ul><li>all the above value coolness over content </li></ul><ul><ul><li>Excite Web Reviews </li></ul></ul><ul><ul><li>Lycos Top 5% </li></ul></ul><ul><ul><li>Magellan Internet Guide </li></ul></ul><ul><li>PICS (Platform for Internet Content Selection) </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  23. 23. Some other criteria: <ul><li>British Healthcare Internet Association Quality Standards for Medical Publishing on the Web: </li></ul><ul><ul><ul><li>http://www.bhia.org/ </li></ul></ul></ul><ul><li>Evaluating Web Sites for Educational Uses: http://www.iat.unc.edu </li></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998
  24. 24. A solution <ul><li>VAHIC (Veterinary and Animal Health Information Consortium) </li></ul><ul><ul><li>AHT, CABI, Moredun, RCVS, RVC, VLA, ZSL </li></ul></ul><ul><ul><ul><li>subject gateway (resource evaluation) </li></ul></ul></ul><ul><ul><ul><li>clumps (Z39.50): OPACS, journals holdings </li></ul></ul></ul><ul><ul><ul><li>document delivery </li></ul></ul></ul>Evaluating and Filtering Electronic Information BSAVA Congress 3 April 1998

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