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| creator |
Brodt, Andreas
| | date |
2007-08-07
| | | | description |
92 pages
| |
Location-based services have gained large impact in the last years.
Also, meanwhile small and powerful end-user devices are present and
available. At the same time, so-called mashup pages are spreading on
the web. Mashups integrate content from existing sources into a new
presentation. With the appearance of web-based map APIs, such as
Google Maps, it has become easy to create mapping mashups, which
present geographically annotated data on a map. Giving such a
mapping mashup the possibility to utilize the user's position
would make the mashup location-aware and provide additional user
value.
This thesis explores how the user's position can be integrated
into a mashup. Different approaches to achieve this are examined. An
architecture for a system enabling location-based mashups is
developed. The architecture integrates the user's position into
mashups by extending the web browser. The Delivery Context
Interfaces (DCI) are used as standardized interface for providing
mashups with the user's position. Mashups are created on the
user's device by a JavaScript client. Adaptation to the various
data formats of the data sources is done by wrappers on the server
side which convert the data into a uniform format. The architecture
is implemented on a Nokia N800 Internet Tablet. An external
Bluetooth GPS device is used for locating the user. Finally, an
approach to integrate privacy aspects to the platform is presented.
| | format |
application/pdf
| | 6877177 Bytes | |