Adapt the content to suit the device so that it looks best to the
user. Different techniques are used for adaptation??”including detection, redirection,
setting correct MIME types, changing links, and removing or scaling graphics.
The "lowest common denominator" or LCD method establishes a minimum set
of features expected from the device and develops content adhering to those
guidelines. The minimum expected feature set is also called the Default Delivery
Context (DDC).
W3C-Defined Default Delivery Context
Usable Screen Width: 120 pixels, minimum
Markup Language Support: XHTML Basic 1.1 delivered with
content type application/xhtml+xml
Character Encoding: UTF-8
Image Format Support: JPEG, GIF 89a
Maximum Total Page Weight: 20 kilobytes
Colors: 256 Colors minimum
Style Sheet Support: CSS Level 1. In addition, CSS Level 2 @media
rule together with the handheld and all media types
HTTP: HTTP/1.0 or more recent HTTP 1.1
Script: No support for client-side scripting
??? ??? ??? ??? ??? ??? ??? ??? ???
Chapter 1
[ 21 ]
Adaptation is Better, but LCD is Easier
Adapting according to the device capabilities is the ideal solution for delivering
mobile web.
Pages:
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48