Dependability issues in mobile distributed system

Proceedings 1999 Pacific Rim International Symposium on Dependable Computing Pub Date : 1999-12-16 DOI:10.1109/PRDC.1999.816206

Heimo Laamanen, T. Alanko, K. Raatikainen

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引用次数: 6

Abstract

The article discusses dependability issues in Distributed Systems comprising mobile hosts and wireless data communications (Mobile Distributed Systems). By enabling motion and location independence wireless data communications and mobile hosts allow information access that may occur any time and any place. We show that location and time significantly affect the dependability concept of distributed systems. We demonstrate that the traditional dependability concept is not adequate for Mobile Distributed Systems. Therefore, we enhance the dependability concept to be suitable for Mobile Distributed Systems by extending the definitions of availability and reliability. In addition, we introduce a new attributed of dependability called serveability, which addresses the dependability of the service of Mobile Distributed Systems in a way that a nomadic end-user measures it. We also propose a model of Mobile Distributed Systems that helps the designers and programmers of Mobile Distributed Systems to build distributed systems that offer the best obtainable dependability everywhere and at any time.

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移动分布式系统的可靠性问题

本文讨论了由移动主机和无线数据通信组成的分布式系统(移动分布式系统)的可靠性问题。通过实现运动和位置独立性，无线数据通信和移动主机允许在任何时间和任何地点进行信息访问。我们证明了位置和时间对分布式系统的可靠性概念有显著影响。研究表明，传统的可靠性概念并不适用于移动分布式系统。因此，我们通过扩展可用性和可靠性的定义来增强可靠性概念，使其适用于移动分布式系统。此外，我们引入了一种新的可靠性属性，称为可服务性，它解决了移动分布式系统服务的可靠性，以一种游牧最终用户测量它的方式。我们还提出了一个移动分布式系统的模型，该模型可以帮助移动分布式系统的设计者和程序员构建随时随地提供最佳可获得可靠性的分布式系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings 1999 Pacific Rim International Symposium on Dependable Computing

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