Design concepts to overcome the keyhole effect when navigating virtual data fields. For example, "The navigation mechanism should be a model of the topic being navigated." Keyhole effect pdf" Visual Momentum design concepts"

See
D.D. Woods and J.C. Watts. How Not To Have To Navigate Through Too Many Displays. In Helander, M.G., Landauer, T.K. and Prabhu, P. (Eds.) Handbook of Human-Computer Interaction, 2nd edition. Amsterdam, The Netherlands: Elsevier Science, 1997.

J. Watts-Perotti and D.D. Woods. How Experienced Users Avoid Getting Lost in Large Display Networks. International Journal of Human-Computer Interaction, 11(4), 269—299, 1999.

D.D. Woods. Visual Momentum: A concept to improve the cognitive coupling of person and computer. International Journal of Man-Machine Studies, 21:229--244, 1984.