My presentation on the cognitive principles of diagrams for VizThink09

3. Why do we use diagrams?

5. Communication Roles of Media

7. How do diagrams work?

8. Diagrams work... “ In the representations we call diagrammatic, information is organized by location , and often much of the information needed to make an inference is present and explicit at a single location . In addition, cues to the next logical step in the problem may be present at an adjacent location . Therefore problem solving can proceed through a smooth traversal of the diagram, and may require very little search or computation of elements that had been implicit. ” - Larkin, J.H., & Simon, H.A. Why a Diagram is (Sometimes) Worth Ten Thousand Words. Cognitive Science, 11, 1.

10. Location & Flow

16. HIP Stores

18. HIP System

19. Principles

21. “ A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away. ” - Antoine de Saint-Exupery

22. Cognitive Load

23. Cognitive Load

24. Cognitive Load

27. Re-representation

28. Graphic Constraints

30. Scanning

31. Attention

32. TopDown & BottomUp

33. Processing

34. Additional Dimensions

35. “ Tuning is nine-tenths of the effort” Will Wright

36. Evolution

37. Re-Representation

38. Designing a Diagram?

40. Designing a Diagram?