Journal of Medical Systems

, Volume 35, Issue 2, pp 169–177 | Cite as

Toward A Human-Centered Hyperlipidemia Management System: The Interaction between Internal and External Information on Relational Data Search

Original Paper


In a distributed information search task, data representation and cognitive distribution jointly affect user search performance in terms of response time and accuracy. Guided by UFuRT (User, Function, Representation, Task), a human-centered framework, we proposed a search model and task taxonomy. The model defines its application in the context of healthcare setting. The taxonomy clarifies the legitimate operations for each type of search task of relational data. We then developed experimental prototypes of hyperlipidemia data displays. Based on the displays, we tested the search tasks performance through two experiments. The experiments are of a within-subject design with a random sample of 24 participants. The results support our hypotheses and validate the prediction of the model and task taxonomy. In this study, representation dimensions, data scales, and search task types are the main factors in determining search efficiency and effectiveness. Specifically, the more external representations provided on the interface the better search task performance of users. The results also suggest the ideal search performance occurs when the question type and its corresponding data scale representation match. The implications of the study lie in contributing to the effective design of search interface for relational data, especially laboratory results, which could be more effectively designed in electronic medical records.


Data display Hyperlipidemias User–computer interface Decision making Computer-assisted 


  1. 1.
    Coiera, E. W., Jayasuriya, R. A., Hardy, J., Bannan, A., and Thorpe, M. E. C., Communication loads on clinical staff in the emergency department. MJA. 176:415–418, 2002.Google Scholar
  2. 2.
    Zhang, J., Patel, V. L., Johnson, K. A., Malin, J., and Smith, J. W., Designing human-centered distributed information systems. IEEE Intell. Syst. 17 (5)42–47, 2002.CrossRefGoogle Scholar
  3. 3.
    Gong, Y., and Zhang, J., A human-centered design and evaluation framework for information search. AMIA Annual Symposium Proceedings/AMIA Symposium 281–285, 2005.Google Scholar
  4. 4.
    Marchionini, G., Interfaces for end-user information seeking. J. Am. Soc. Inf. Sci. 42 (2)156–163, 1992.CrossRefGoogle Scholar
  5. 5.
    Zhang, J., and Norman, D. A., A representational analysis of numeration systems. Cognition. 57:271–295, 1995.CrossRefGoogle Scholar
  6. 6.
    Gong, Y., Zhang, T., Rukab, J., Johnson-Throop, K., Malin, J., and Zhang, J., Design and development of a search interface for an information gathering tool. Stud. Health Technol. Inform. 107 (Pt 2)1471–1475, 2004.Google Scholar
  7. 7.
    Zhang, J., A representational analysis of relational information displays. Int. J. Human-Comput. Stud. 45:59–74, 1996.CrossRefGoogle Scholar
  8. 8.
    Hutchins, E., Cognition in the wild. Cambridge. Massachusetts Institute of Technology, Massachusetts, 1995.Google Scholar
  9. 9.
    Zhang, J., (Ed.). The interaction of internal and external representations in a problem solving task. Proceedings of the Thirteenth Annual Conference of Cognitive Science Society; 1991; Hillsdale: NJ: Erlbaum.Google Scholar
  10. 10.
    Petersen, J., and May, M., Scale transformations and information presentation in supervisory control. Int. J. Human-Comp. Stud., 2006.Google Scholar
  11. 11.
    Stevens, S. S., On the theory of scales and measurement. Science. 103 (2684)677–680, 1946.CrossRefGoogle Scholar
  12. 12.
    Gorman, P. N., Excellent information is needed for excellent care, but so is good communication. West. J. Med. 172 (2000)319–320, 2003.Google Scholar
  13. 13.
    Hersh, W. R., and Hickman, D. H., How well do physicians use electronic information retrieval systems. J. Am. Med. Assoc. 280 (15)1347–1452, 1998.CrossRefGoogle Scholar
  14. 14.
    Wilson, V., The information needs of primary care physicians: digital reference service. 2004 [cited 2005 Jun 15]; Available from:
  15. 15.
    Gorman, P. N., Information needs of physicians. J. Am. Soc. Inform. Sci. 46 (10)729–736, 1995.CrossRefGoogle Scholar
  16. 16.
    Mendonca, E., Cimino, J. J., Johnson, S. B., and Seol, Y.-H., Accessing heterogeneous sources of evidence to answer clinical questions. J. Biomed. Informat. 34:98, 2001.CrossRefGoogle Scholar
  17. 17.
    Elting, L. S., Martin, C. G., Cantor, S. B., and Rubenstein, E. B., Influence of data display formats on physician investigators’ decisions to stop clinical trials: prospective trial with repeated measures. BMJ. 318:1527–1531, 1999.Google Scholar
  18. 18.
    Norman, D. A., Things that make us smart: defending human attributes in the age of the machine. Addison-Wesley Perseus, Massachusetts, 1993.Google Scholar
  19. 19.
    Saracevic, T., Modeling interaction in information retrieval (IR): a review and proposal. Proc. Am. Soc. Inf. Sci. 33:3–9, 1996.Google Scholar
  20. 20.
    Bystrom, K., and Jarvelin, K., Task complexity affects information seeking and use. Inf. Process. Manage. 31 (2)191–213, 1995.CrossRefGoogle Scholar
  21. 21.
    Dervin, B., On studying information seeking methodologically. The implications of connecting metatheory to method. Inf. Process. Manage. 35 (6)727–750, 1999.CrossRefGoogle Scholar
  22. 22.
    Ellis, D., Cox, D., and Hall, K., A comparison of the information seeking patterns of researchers in the physical and social sciences. J. Doc. 49 (4)356–369, 1993.CrossRefGoogle Scholar
  23. 23.
    Hornof, A. J., Cognitive strategies for the visual search of hierarchical computer displays. Hum.–Comput. Interact. 19 (3)183–223, 2004.CrossRefGoogle Scholar
  24. 24.
    Hutchins, E., and Klausen, T., Distributed cognition in an airline cockpit. In: Engestrom, Y., and Middleton, D. (Eds.), Cognition and Communication at WorkCambridge University Press, Cambridge, 1996.Google Scholar
  25. 25.
    SPSS. 12 ed. Chicago, Illinois: SPSS Inc; 2005.Google Scholar
  26. 26.
    Jacob, R., User interface. In: Ralston, A., Hemmendinger, D., and Reilly, E. (Eds.), Encyclopedia of Computer Science. 4th edMacmillan, New York, 2000.Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of Health Management and Informatics, School of MedicineUniversity of MissouriColumbiaUSA
  2. 2.School of Health Information SciencesUniversity of Texas Health Science Center at HoustonHoustonUSA

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