Transaction is a very important concept in DBMS,which has several features such as consistency,atomicity, durability and isolation. In this paper, we first analyze the parallelism of traditional transaction model. Nex...
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Transaction is a very important concept in DBMS,which has several features such as consistency,atomicity, durability and isolation. In this paper, we first analyze the parallelism of traditional transaction model. Next we point out that we can investigate more parallelism with a high parallel processing manner underlying multi-processors parallel structures. We will then compare the influence of two different software architectures on database system parallelism.
It's the reason for current Workflow Management System having not provided transaction model and the support of data recovery and exception handling that there is no direct transforming between activity-oriented w...
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It's the reason for current Workflow Management System having not provided transaction model and the support of data recovery and exception handling that there is no direct transforming between activity-oriented workflow model and data-oriented transaction model. This paper proposes an idea of implementing resource-centric transaction model for WFMS: Integrate the plug-in container of resource in former architecture, separate resource scheduling as independent functional module from skill module, and imply transaction planning in agent collaboration, without losing flexibility and interaction ability of former architecture. Thus provide the support of concurrency and recovery for shared data resource in Workflow, which is the basis of data consistency control and exception handling.
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