heuristic-systematic model (HSM), 85

hierarchical organisation, 382, 405, 415

hierarchy, 167, 270, 281, 382, 406

Hoesch, Kirsten, 146, 148–152, 154, 170, 173–174

Höflich, Joachim, 30–32, 44, 82

Hoppmann, Talke, 107, 413, 423

human-computer interaction, 12, 58, 93, 426

identity, 57, 83, 114, 142, 178, 393, 462

impression, 135, 192, 255, 269, 286, 331, 338–341, 343–347, 351–352, 357, 369, 372, 397–399, 403–404, 406–407, 411, 416, 418, 421–422, 436, 467

improvement, 3–4, 150, 186, 385, 388, 409, 412, 417–418, 438

inclusion, 154, 161, 413, 422, 425–426

in-depth interviews, 264–266, 269, 286, 299, 423

information

layers, 375

needs, xvii, 26, 48–51, 55, 71, 77, 92–93, 95, 103, 109–111, 115, 118–119, 124–126, 130, 132, 139, 172, 294, 413, 420, 423

overload, 94, 117–118, 120, 236, 331

policy, 146, 148, 150–152, 161, 236

processing, 18, 25–26, 28, 39, 72–74, 85–87, 89–90, 96, 100, 102, 110, 122, 247, 303, 333, 406, 461

science, 18, 36, 52, 61, 76, 79, 96, 106

seeking, 3–4, 7–8, 11, 13, 17, 24, 33–36, 39, 43–44, 46–47, 49, 51–76, 78–81, 86, 89–96, 98–99, 104, 107–111, 114, 117–124, 134, 222, 233–236, 238, 240, 245, 248–249, 253, 259, 264, 271, 304, 343, 415, 420, 429

society, 152–154, 391

integrative framework, 37–38, 42

interaction, 1–6, 9, 12–13, 15, 18–21, 23–25, 35–36, 38–42, 47, 54, 57–60, 62–63, 65–66, 71, 73, 80–83, 88, 93, 101–108, 110, 115, 119, 121, 123, 125, 130–133, 135, 137, 154, 157, 160, 169, 181, 220, 222–223, 228, 230, 233–234, 238–247, 249, 252, 255, 258–260, 269–271, 275, 282, 293, 377, 383, 385, 406, 417–418, 426, 429–430

interactivity, 16, 20, 22–26, 29, 32–33, 37–38, 45, 50, 116, 124, 134, 157, 160–161, 385, 391, 416, 418, 439, 460, 461

interest, 10–11, 41–42, 45, 58, 78, 99, 106, 115–118, 127–128, 137–139, 143–144, 160, 166, 169, 234, 245–246, 248, 308–310, 318, 333–335, 337–338, 345, 357, 385, 396, 399–400, 420, 422

interface, 24, 38, 50, 64, 66, 96, 103–104, 238, 264, 295, 387, 438

Internet experience, 106, 121, 123, 239, 312, 318, 432, 442, 445, 451–453