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Ψ—Pervasive Services Infrastructure
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Ψ—Pervasive Services Infrastructure
Dejan Milojicic6  , Alan Messer6 , Philippe Bernadat6 , Ira Greenberg6 , Olaf Spinczyk7 , Danilo Beuche7 and Wolfgang Schröder-Preikschat7
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Hewlett-Packard Labs, MS 3U-18, 1501 Page Mill Road, Palo Alto, 94304, California, USA |
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Fakultät für Informatik, Otto-von-Guericke Universität Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany |
Abstract
Future systems have been characterized as ubiquitous, pervasive, and invisible. They will consist of devices that are diverse
in size, performance, and power consumption. Some of these devices will be mobile, posing additional requirements to system
software and applications. The focus will move from technology to deployment and ease of use of services. Consequently, traditional
paradigms for reasoning about, designing, and implementing software systems and services will no longer be sufficient.
We believe that this future vision will rely on a three-tier infrastructure consisting of back-end servers, infrastructure
servers, and front-end clients (mobile or static, handheld or embedded). The critical question for future systems will be
how to deliver services on demand from back-end servers to resource-constrained clients. If we can handle the new requirements
of these systems, we can enable this computing infrastructure to offer significantly more services to users in a more pervasive
way.
Acknowledgments We are indebted to G. Candea, C. Karamanolis, K. Keeton, E. Kiciman, M. Mahalingam, D. Muntz, G. Snider, and J. Wilkes for
reviewing the paper and/or otherwise contributing to the project. Their comments significantly improved the content and presentation.
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