Information Technology Reference
In-Depth Information
Table 2.
level “-1”
no xHTML support of any kind, but possible WML support
Basic xHTML support. Minimum screen-width: 100 pixels. No (or very unreliable) CSS support. Poor table sup-
port or none at all. Basic forms: text field, select-option, submit button.
level “0”
xHTML with some CSS support. Minimum screen-width: 120 pixels. Hyperlinks may not be coloring by CSS.
Basic table support: 2x2 or more. Column span and row span may not be supported. “Width” expressed as percent-
age may be unreliable.
level “1”
level “2”
Assume same capabilities as level “1”, but may vary in the future.
Excellent CSS support. Padding, border and margin are correctly applied. Can reliable apply colors to links, text
and background. CSS graphic effects are pixel perfect. Minimum screen-width: 164 pixels. It can support complex
tables. “Font-size” of 10px or above produces readable text. Supports background images also applied via CSS. In
general, it is running on 3G devices (assuming high-bandwidth, Edge/UMTS/...)
level “3”
level “4”
Level 3 + Ajax support. Toggle display property.
•
Apple iOS, Google Android, Palm OS,
Windows Mobile OS, Blackberry OS,
Symbian OS: some of the more popular
operating systems provided for smart-
phones and PDAs.
•
The capability “xhtml_support_level” of
the group “markup” in the WURFL file is
equal to or greater than 3.
•
Minimum display width of 164 pixels.
Displays of fewer pixels automatically
downgrade the quality of the given pages
affecting the total service quality and user
experience.
•
Names of game consoles such as
Playstation, Nintendo, Xbox, with the ca-
pability to access the internet.
•
Opera mini, Opera mobile, Firefox
Mobile: some popular web browsers for
smartphones and PDAs by non-device
manufacturers.
•
The attributes “jpg”, “tiff”, “gif”, “gif_ani-
mated” and “bmp” of the group “image_
format” in the WURFL file are “TRUE”.
This assures support of the commonest
picture types.
Wireless Devices with Full Multimedia
Capabilities
In this class we classify the devices that match
the following criteria:
Wireless Devices with Reduced Multimedia
Capabilities
This class includes the devices with restrictions
in the presentation of multimedia content. In
particular, for these we assume that:
•
The capability “is_wireless_device” of the
group “product_info”, as well as the capa-
bility “wifi” of the group “bearer” in the
WURFL file are “TRUE”. This assures that
the device can work wirelessly. According
to the access scenario we have processed,
the clients will communicate with the web
server of our service via mainly the WiFi
intranet of the hospital, or the 3G network
(wherever available).
•
The capability “is_wireless_device” of the
group “product_info”, as well as the capa-
bility “wifi” of the group “bearer” in the
WURFL file are “TRUE”.
•
The capability “xhtml_support_level”of
the group “markup” in the WURFL file
equals to 2. This level of support of xHT-
ML cannot unambiguously characterize the
multimedia capabilities of the device. But
along with the capability “wifi”, for which
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