Display and Interface Design

Contents
xv
15. Design Principles: Visual Momentum................................................... 375
15.1 Introduction........................................................................................ 375
15.2 Visual Momentum.............................................................................377
15.2.1 Design Strategies.................................................................. 378
15.2.1.1 Fixed Format Data Replacement......................... 378
15.2.1.2 Long Shot............................................................... 379
15.2.1.3 Perceptual Landmarks......................................... 379
15.2.1.4 Display Overlap....................................................380
15.2.1.5 Spatial Structure
(Spatial Representation/Cognition)................... 381
15.2.2 Interface Levels..................................................................... 381
15.3 VM in the Work Space...................................................................... 382
15.3.1 The BookHouse Interface....................................................383
15.3.1.1 Spatial Structure...................................................384
15.3.1.2 Display Overlap....................................................385
15.3.1.3 Perceptual Landmarks.........................................386
15.3.1.4 Fixed Format Data Replacement.........................386
15.3.2 The iPhone Interface............................................................ 387
15.3.2.1 Spatial Structure................................................... 387
15.3.2.2 Long Shot...............................................................389
15.3.2.3 Fixed Format Data Replacement.........................389
15.3.2.4 Perceptual Landmarks.........................................390
15.3.3 Spatial Cognition/Way-Finding.........................................390
15.3.3.1 Landmark Knowledge......................................... 391
15.3.3.2 Route Knowledge.................................................. 392
15.3.3.3 Survey Knowledge................................................ 392
15.4 VM in Views....................................................................................... 394
15.4.1 The RAPTOR Interface........................................................ 395
15.4.1.1 Spatial Dedication; Layering and
Separation.............................................................. 395
15.4.1.2 Long Shot............................................................... 395
15.4.1.3 Perceptual Landmarks......................................... 397
15.4.1.4 Fixed Format Data Replacement......................... 398
15.4.1.5 Overlap................................................................... 399
15.5 VM in Forms.......................................................................................400
15.5.1 A Representative Configural Display................................ 401
15.5.1.1 Fixed Format Data Replacement.........................402
15.5.1.2 Perceptual Landmarks.........................................402
15.5.1.3 Long Shot...............................................................403
15.5.1.4 Overlap...................................................................403
15.5.1.5 Section Summary..................................................403
15.6 Summary............................................................................................404
References......................................................................................................405
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