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Time horizon in distributed object societies

Published: 12 November 2006 Publication History

Abstract

In a distributed system, it takes time for a software event to reach remote clients. In the same sense as used in physics, only when the event had reached the time horizon of a client, client becomes aware of it. Using this metaphor, we have developed a simple yet powerful model for software components to get back in sync after interruptions. The ideas described in this paper have been implemented on En Route Automation Modernization (ERAM) program, a Federal Aviation Administration (FAA) effort aimed at replacing the aging en route assets and planting a seed for the many future enhancements that the projected increase in air traffic requires. In many ways, this paper is a compendium to another paper at this same conference titled Publisher Framework (PFW), because it is within the auspices of PFW that these ideas have been implemented.

References

[1]
Balakrishnan, M., Birman, K., Reliable Multicast for Time-Critical Systems. To Appear in Proceedings of the First IEEE Workshop on Applied Software Reliability, Philadelphia, PA. June 2006.
[2]
Klein, J., Sotirovski, D., Publisher Framework (PFW), 11th International Conference on Reliable Software Technologies - Ada-Europe 2006, Porto, Portugal, June 5-9, 2006.
[3]
Lamport, L., Time, Clocks, and the Ordering of Events in a Distributed System, Communications of the ACM, No.7, Vol.21, July 1978.
[4]
Ostrowski, K., Birman, K., Extensible Web Services Architecture for Notification in Large-Scale Systems. In Submission 2006.

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cover image ACM Conferences
SIGAda '06: Proceedings of the 2006 annual ACM SIGAda international conference on Ada
November 2006
92 pages
ISBN:1595935630
DOI:10.1145/1185642
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 12 November 2006

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  1. availability through software replication

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SIGAda '06
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SIGAda '06: ACM SIGAda Annual International Conference
November 12 - 16, 2006
New Mexico, Albuquerque, USA

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