Publication no #270
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|User Guidance of Resource-Adaptive Systems|
João Sousa, Rajesh Balan,
David Garlan and Mahadev Satyanarayanan.
In ICSOFT'08 International Conference on Software and Data Technologies, Porto, Portugal, July 2008.
Online links: Plain Text
|This paper presents a framework for engineering resource-adaptive software systems targeted at small
mobile devices. The proposed framework empowers users to control tradeoffs among a rich set of servicespecific
aspects of quality of service. After motivating the problem, the paper proposes a model for
capturing user preferences with respect to quality of service, and illustrates prototype user interfaces to elicit
such models. The paper then describes the extensions and integration work made to accommodate the
proposed framework on top of an existing software infrastructure for ubiquitous computing.
The research question addressed here is the feasibility of coordinating resource allocation and
adaptation policies in a way that end-users can understand and control in real time. The evaluation covered
both systems and the usability perspectives, the latter by means of a user study. The contributions of this
work are: first, a set of design guidelines for resource-adaptive systems, including APIs for integrating new
applications; second, a concrete infrastructure that implements the guidelines. And third, a way to model
quality of service tradeoffs based on utility theory, which our research indicates end-users with diverse
backgrounds are able to leverage for guiding the adaptive behaviors towards activity-specific quality goals.|
Keywords: Aura, Resource Aware Computing.
| Created: 2008-06-03 10:39:03 Modified: 2009-05-01 14:22:36|