AuthorsM. Alia, V. S. W. Eide, N. Paspallis, F. Eliassen, S. O. Hallsteinsen and G. A. Papadopoulos
EditorsL. T. Yang, V. Chaudhary and R. Huang
TitleA Utility-Based Adaptivity Model for Mobile Applications
AfilliationMedia, Communication Systems
StatusPublished
Publication TypeProceedings, refereed
Year of Publication2007
Conference NameThe IEEE International Symposium on Ubisafe Computing (UbiSafe-07)
Pagination556-563
Date PublishedMay
PublisherIEEE Computer Society Press
ISBN Number0-7695-2847-3
Abstract

Mobile environments are characterized by resource fluctuations and limitations, and variations in user preferences. Therefore mobile applications need to be adaptive to retain usability, usefulness and reliability. In our approach to support adaptivity, we combine context awareness, reflection and component composition planning. The planning is done by generic middleware and supports dynamic discovery, utility-based and context-aware evaluation, and selection of the best implementation alternative of a given mobile application. In this paper we present a formal model of our approach and use this model to show the expressiveness of utility-based adaptation policies. To demonstrate the feasibility and expressiveness of our approach we include a case study based on a real adaptive application built using our model and middleware.

Citation KeySimula.ND.9