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首页> 外文会议>International Conference on Conceptual Modeling; 20061106-09; Tucson,AZ(US) >The DeltaGrid Abstract Execution Model: Service Composition and Process Interference Handling
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The DeltaGrid Abstract Execution Model: Service Composition and Process Interference Handling

机译：DeltaGrid抽象执行模型：服务组合和流程干扰处理

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摘要

This paper introduces the DeltaGrid abstract execution model as a foundation for building a semantically robust execution environment for concurrent processes executing over Delta-Enabled Grid Services (DEGS). A DEGS is a Grid Service with an enhanced capability to capture incremental data changes, known as deltas, associated with service execution in the context of global processes. The abstract model contains a service composition model that provides multi-level protection against service execution failure, thus maximizing the forward recovery of a process. The model also contains a process recovery model to handle the possible impact caused by failure recovery of a process on other concurrently executing processes using data dependencies derived from a global execution history and using user-defined correctness criteria. This paper presents the abstract execution model and demonstrates its use. We also outline future directions for incorporating application exception handling and build a simulation framework for the DeltaGrid system.
机译：本文介绍了DeltaGrid抽象执行模型，以此作为为在Delta-Enabled Grid Services（DEGS）上执行的并发进程构建语义上健壮的执行环境的基础。 DEGS是一种网格服务，具有增强的功能，可以捕获与全局过程上下文中的服务执行相关的增量数据更改（称为增量）。抽象模型包含一个服务组合模型，该模型提供了针对服务执行失败的多级保护，从而最大程度地实现了流程的正向恢复。该模型还包含一个流程恢复模型，该流程使用从全局执行历史记录中导出的数据相关性并使用用户定义的正确性标准，来处理流程故障恢复对其他同时执行的流程造成的可能影响。本文介绍了抽象执行模型并演示了其用法。我们还将概述合并应用程序异常处理的未来方向，并为DeltaGrid系统构建一个仿真框架。

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