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Carisma: context-aware reflective middleware system for mobile applications (2003)
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| Venue: | IEEE TRANS. ON SOFTWARE ENGINEERING |
| Citations: | 173 - 5 self |
BibTeX
@ARTICLE{Capra03carisma:context-aware,
author = {Licia Capra and Wolfgang Emmerich and Cecilia Mascolo},
title = {Carisma: context-aware reflective middleware system for mobile applications},
journal = {IEEE TRANS. ON SOFTWARE ENGINEERING},
year = {2003},
volume = {29},
number = {10},
pages = {929--945}
}
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Abstract
Mobile devices, such as mobile phones and personal digital assistants, have gained wide-spread popularity. These devices will increasingly be networked, thus enabling the construction of distributed applications that have to adapt to changes in context, such as variations in network bandwidth, battery power, connectivity, reachability of services and hosts, etc. In this paper, we describe CARISMA, a mobile computing middleware which exploits the principle of reflection to enhance the construction of adaptive and context-aware mobile applications. The middleware provides software engineers with primitives to describe how context changes should be handled using policies. These policies may conflict. We classify the different types of conflicts that may arise in mobile computing and argue that conflicts cannot be resolved statically at the time applications are designed, but, rather, need to be resolved at execution time. We demonstrate a method by which policy conflicts can be handled; this method uses a microeconomic approach that relies on a particular type of sealed-bid auction. We describe how this method is implemented in the CARISMA middleware architecture and sketch a distributed context-aware application for mobile devices to illustrate how the method works in practice. We show, by way of a systematic performance evaluation, that conflict resolution does not imply undue overheads, before comparing our research to related work and concluding the paper.
Keyphrases
mobile application context-aware reflective middleware system mobile computing conflict resolution context-aware mobile application sealed-bid auction mobile phone time application carisma middleware architecture systematic performance evaluation network bandwidth personal digital assistant microeconomic approach policy conflict mobile device distributed context-aware application battery power index term middleware execution time abstract mobile device particular type different type context change wide-spread popularity undue overhead mobile computing middleware distributed application game theory software engineer
