Information Technology Reference
In-Depth Information
Each group has one or more elements describ-
ing the capabilities of the device. Each capability
is identified by its name, which is characteristic
of the capability. Next to each capability the as-
sociated value in numeric or text format is given.
An example device entry in WURFL can be found
in Exhibit 4.
A detailed report on the capabilities categorized
under each group, as well as on the type and
values each one can have, can be found at the web
site of WURFL. The documentation includes
tables similar to Table 1 and facilitates searching
in the WURFL file.
In terms of adoption, WURFL is today more
popular than pure UAProf or MPEG-21 solutions
due to the flexibility it provides related to the
issues with both standards. Its popularity between
service developers, as well as its adoption in
various fields of applications (Xinyou Zhao et al.,
2008), (Wolfram Höpken et al., 2008), (Pablo
Lavin-Mera et al., 2009), (José Manuel Cantera
et al., 2008), has turned WURFL to a real trend.
The WURFL file is updated almost on daily basis
with new device models by independent con-
tributors in the world, although recently many
device manufacturers support also the project.
For these reasons we have chosen WURFL as the
means to provide adapted multimedia medical
content to the medical staff of our hospital in view.
Towards Medical Content Adaptation
Our case study assumes a hospital environment,
which decides to deploy a web-like service for
the immediate provision of medical data related
to patients to the wireless terminal devices of
its medical personnel. Our description hereafter
focuses on the software development issues in-
duced by the presentation of the patients' record
adapted to the terminal capabilities of each client
device. Business issues related to the provision
of this service, such as the authentication and
Exhibit 4. Example device entry in WURFL
<devices>
<device
id=”nokia_n95_ver1_sub_mozilla_d”
user_agent=”Mozilla/5.0 (SymbianOS/9.2; U; Series60/3.1 NokiaN95_8GB/10.0.021;
Profile/MIDP-2.0 Configuration/CLDC-1.1) AppleWebKit/413 (KHTML, like Gecko)
Safari/413” fall_back=”nokia_n95_ver1_sub_mozilla”>
<group id=”bearer”>
<capability name=”wifi” value=”true”/>
<capability name=”max_data_rate” value=”1800”/>
</group>
<group id=”css”>
<capability name=”css_supports_width_as_percentage” value=”true”/>
</group>
</device>
</devices>
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