INTERACTION DESIGN PRINCIPLES FOR INTERACTIVE ...

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In designing for television, going from a 4:3 aspect ratio to a 16:9 aspect ratio will stretch the image without losing any information. However, when going from 16:9 to a 4:3 screen, the image is either cropped at the edges (center cut-out), or the entire image is shrunk by 25%, with black bars on the top and bottom of the image (letterboxing). Figure 4.4 illustrates the difference between these two methods. Figure 4.4 Center Cut-Out and Letterboxing The BBC recommends that it is best to design for 4:3 because it will always display on both standard and widescreen TV sets (2002). However, since the 16:9 aspect ratio is the preferred format for the new HDTV standard, and since ownership of widescreen TVs is increasing, it makes increasing sense to design interfaces for the latest generation of televisions as well. 4.2.2 Safe Areas Most televisions, especially older models, cut off the outer edges of the video screen. Therefore, any media that falls outside of the “action safe” area of the screen may be cut off. The safe areas for standard television are 10% graphics-safe and 5% action- safe around the entire perimeter (Baker, 1999). Figures 4.5 and 4.6 illustrate the action- 87
and graphics-safe areas for designing for the 16:9 HDTV standards, as well for optimizing output for the standard 4:3 ratio. Figure 4.5 16:9 Full Image, Defining the Action- and Graphics-Safe Areas Figure 4.6 16:9 Shoot to Protect 4:3, Defining the Action- and Graphics-Safe Areas Two main design considerations are important to keep in mind when designing for the 16:9 aspect ratio. Both the left- and right-hand edges of the screen will be cut off 88
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INTERACTION DESIGN PRINCIPLES FOR I
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ACKNOWLEDGMENTS This thesis would n
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2.3.3 Constraints 2.4 Electronic /
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4.2 Designing for Television 4.2.1
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Table 1.1 Table 1.2 Table 1.3 Table
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Figure 2.6 Figure 2.7 Figure 2.8 Fi
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Figure 5.4 Figure 5.5 Figure 5.6 Fi
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Figure 5.36 Figure 5.37 Figure 5.38
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SUMMARY Interactive television (iTV
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However, it is clear that televisio
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looking closely at existing designs
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For viewers with analog television
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Figure 1.3 Percent of Households wi
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interact with television shows by u
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New Media usage is dominated by 18
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Figure 1.6 Winky Dink and You The o
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1.4.1 BBC Interactive Figure 1.7 In
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1.4.2 Additional Examples Many othe
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Table 1.6 (continued). Greece Local
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Table 1.6 (continued). New Zealand
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using a combination of visual cultu
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CHAPTER 2 BROAD CATEGORIES OF ITV P
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Table 2.1 Categorization of iTV by
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capable of storing an enormous amou
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(c) Figure 2.2 Examples of Comcast
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(c) (d) Figure 2.3 Examples of Gems
Page 53 and 54: users to send email, chat, and surf
Page 55 and 56: 2.6 WEB-BASED SYNCHRONOUS (TWO-SCRE
Page 57 and 58: interactive or enhanced content on
Page 59 and 60: they allow for greater versatility,
Page 61 and 62: Networks have also used wireless de
Page 63 and 64: The American Film Institute’s enh
Page 65 and 66: game consoles with televisions and
Page 67 and 68: Interactivity must be tied to origi
Page 69 and 70: CHAPTER 3 BROAD CATEGORIES OF ITV P
Page 71 and 72: information about the topic at hand
Page 73 and 74: said they would do so again in the
Page 75 and 76: 3.2.1 Representative Example in Spo
Page 77 and 78: (a) (b) Figure 3.3 Test the Nation
Page 79 and 80: interactive TV betting service tota
Page 81 and 82: application was also available on t
Page 83 and 84: the ABC telecast throughout the eve
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Page 87 and 88: 3.7 SHOPPING Shopping, or purchasin
Page 89 and 90: - and as close to the regular exper
Page 91 and 92: CNN Crossfire, broadcast in front o
Page 93 and 94: Dramas may need to operate under a
Page 95 and 96: The participatory aspect of many pr
Page 97 and 98: 4.1.1 Grid-Based Design Grid-based
Page 99 and 100: The Law of Similarity. Elements tha
Page 101 and 102: more visually pleasing, but can hel
Page 103: Figure 4.3 TV Aspect Ratios Althoug
Page 107 and 108: 4.2.4 Line Width The image on a tel
Page 109 and 110: shapes, to make similar letters dis
Page 111 and 112: specification. OCAP is intended to
Page 113 and 114: pages. Web applications that exceed
Page 115 and 116: Source: Human Factors International
Page 117 and 118: working on a computer is not a soli
Page 119 and 120: media, among others. Figure 4.9 pro
Page 121 and 122: MSN TV 2, which Microsoft rolled ou
Page 123 and 124: with a handheld remote control from
Page 125 and 126: Table 4.2 outlines some of the diff
Page 127 and 128: should be designed with the televis
Page 129 and 130: Pages that appear in series, one af
Page 131 and 132: CHAPTER 5 PRINCIPLES OF INTERACTION
Page 133 and 134: through… The computer’s spatial
Page 135 and 136: medium. The current state of this e
Page 137 and 138: through the different elements offe
Page 139 and 140: y the wider context of the program
Page 141 and 142: History IQ focused on keeping the i
Page 143 and 144: een programs that were still in dev
Page 145 and 146: features of a DVD immediately after
Page 147 and 148: context where the learner is consci
Page 149 and 150: viewing experiences so that each vi
Page 151 and 152: (a) (b) Figure 5.10 TiVo WishList (
Page 153 and 154: e voted off the island. In both cas
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them so conducive to iTV programmin
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own content in ways similar to this
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In the first of a series of on-air
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Jakob Nielsen notes that users are
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(a) (b) Figure 5.22 TV411 Interface
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Figure 5.25 Life 360 Competing Elem
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(a) (b) (c) (d) Figure 5.28 Example
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epresentative of the red button tha
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Lamont brings up compelling advanta
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lower right-hand areas are privileg
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5.4 NAVIGATION Navigation pertains
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Figure 5.35 New Americans Orientati
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Figure 5.37 Test the Nation User In
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applications based on the televisio
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esearchers, “In many ways, the pa
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In Robert Miller’s classic user r
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ecycling bin from Windows, that sta
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importance (see chapter three). In
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Figure 5.46 Examples of Mobile Inte
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CHAPTER 6 CONCLUSIONS AND FUTURE DI
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Figure 6.2 Convergence of Entertain
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(a) Figure 6.3 Examples of MTV Hija
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television producers to create show
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user-centered design, incorporates
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Sheri Lamont, who has practiced and
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ecognition of outstanding achieveme
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REFERENCES Adams, M., Anand, P. & F
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Halle, T. (2003). Standards for int
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Norman, D. (2004) Emotional design:
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Thurrott, P. (2004, October 12). Wi
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BROADBAND A network capable of deli
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MEDIA CENTER Media centers, or PC T
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which a television and a personal c
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