, May 2, 2002
Noon - 1:30 pm
Intel Seminar (417 S. Craig Street - 3rd Floor)
EVENTS PAGE: http://www.intel-research.net/pittsburgh/events.htm
Puppeteer: Component-Based Adaptation for Mobile Computing
Component-based adaptation is a novel approach for adapting applications
to the limited availability of resources such as bandwidth and power in
mobile environments. Component-based adaptation works by calling on the
run-time APIs that modern component-based applications export. Because
source code modification is not necessary, even proprietary applications
such as productivity tools from Microsoft's Office suite can be adapted.
Moreover, new adaptive behavior can be added to applications long after
they have been deployed. Even if source code is available, development
time for implementing adaptation is much reduced.
In addition, the ease with which adaptations can be implemented in this
framework has enabled us to explore new avenues in adaptation. First,
we have developed the first adaptive system to support document editing
and collaboration over bandwidth-limited links. The key insight gathered
from this work is that support for adaptation is orthogonal to concurrency
and consistency mechanisms, and therefore can be integrated easily in
existing systems. Second, we have developed a hierarchical adaptive transmission
scheduler to support coordinated multi-application adaptation.
We have demonstrated the effectiveness of component-based adaptation
by implementing a system called Puppeteer, which has allowed us to adapt
widely deployed applications, such as productivity tools from Microsoft's
Office suite and Sun Microsystems' OpenOffice suite. Although the APIs
of these applications impose some limitations, we have been able to implement
a wide range of adaptation policies for reading, editing, and collaboration,
with modest implementation effort and good performance results.
||Eyal de Lara is a Ph.D. candidate in the
Electrical and Computer Engineering department at Rice University.
His research interests include distributed systems, mobile and ubiquitous
computing, collaborative work, and networking. Eyal received his M.S.
from Rice University and his B.S. from the Instituto Tecnologico de
Monterrey, and has spent a summer at Xerox PARC. He was recently awarded
an IBM Research Fellowship for his work on Puppeteer and Component-Based
Contact Kim Kaan, 412-605-1203,
or visit http://www.intel-research.net.
SDI Home: http://www.pdl.cmu.edu/SDI/