Maximizing the Availability of Process Services in Mobile Computing Environments

2016 IEEE International Conference on Services Computing (SCC) Pub Date : 2016-06-01 DOI:10.1109/SCC.2016.69

W. He, Hui Li, Li-zhen Cui, Shuoyan Lu

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Abstract

Mobile Internet and cloud computing are changing the paradigm of conventional business processes in service provision and demand. With the increasing user interaction and data transmission between mobile devices and workflow services, conventional business process pattern with centralized workflow engine is suffering from great challenges in service availability, reliability and user experience due to uncertain and changeable user contexts in mobile environments. In this paper, we propose a new paradigm for process services based on dynamic multiple replicas of process instance to improve the reliability and efficiency of process services for mobile users in dynamic and instable environments. Also, we give both the replication and synchronization algorithm for process instances based on task dependency paths annotated with vector clocks, which aims to maximize the number of available process replicas during the replicating and synchronizing process. Simulation experiments indicate that the proposed system can provide much better availability and efficiency for process operations in mobile computing environments.

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在移动计算环境中最大化流程服务的可用性

移动互联网和云计算正在改变传统业务流程在服务提供和需求方面的模式。随着移动设备与工作流服务之间的用户交互和数据传输的增加，传统的集中式工作流引擎业务流程模式由于移动环境中用户上下文的不确定性和多变性，在服务可用性、可靠性和用户体验方面面临着巨大的挑战。为了提高动态不稳定环境下移动用户流程服务的可靠性和效率，本文提出了一种基于流程实例动态多副本的流程服务新范式。此外，我们还给出了基于带有矢量时钟注释的任务依赖路径的流程实例的复制和同步算法，其目的是在复制和同步过程中最大化可用流程副本的数量。仿真实验表明，该系统可以为移动计算环境下的过程操作提供更好的可用性和效率。

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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来源期刊

2016 IEEE International Conference on Services Computing (SCC)

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