Repertory hypergrids: an application to clinical practice guidelines

  • Authors:

  • David Madigan;C. Richard Chapman;Jonathan Gavrin;Ole Villumsen;John Boose

  • Affiliations:

  • University of Washington, Fred Hutchinson Cancer Research Center, Department of Statistics, GN-22, University of Washington, Seattle, WA;University of Washington, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA;University of Washington, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA;Aarhus University, University of Washington, Seattle, WA;Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA

  • Venue:
  • ECHT '94 Proceedings of the 1994 ACM European conference on Hypermedia technology
  • Year:
  • 1994

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Abstract

Creation and maintenance of links in large hypermedia documents is difficult. Motivated by an application to a federal clinical practice guideline for cancer pain management, we have developed and evaluated a repertory grid-based linking scheme we call repertory hypergrids. Harnessing established knowledge acquisition techniques, the repertory hypergrid assigns each “knowledge chunk” a location in “context space”. A chunk links to another chunk if they are both close in context space.To evaluate the scheme, we conducted a protocol analysis. Six users of the guideline addressing typical cancer pain management tasks made 30 explicit links. The repertory hypergrid using a neighborhood size of 16 captures 24 of these links. With optimization, the repertory hypergrid captures 27 of the links with a neighborhood size of 13.