一个基于持续消息的分布式工作流管理模型

提出了一种新的分布式结构，在这个结构中，排除了工作流系统对一个集中式数据库的依赖，而是用持续消息的方法将与过程执行有关的信息存储起来，使过程的执行是完全分布式的，并且每个节点都是各自独立的。采用这种方式能增强对错误的恢复能力以及构造系统的灵活性和扩展性。

A Persistent Message-based Architecture for Distributed

In most workflow management systems, a client/server architecture is used in which knowledge about the processes being executed is centralized in one node to facilitate monitoring, auditing, and to simplify synchronixation. Is this paper, we explore a novel distributed architecture for workflow systems in which the need for such a centralized database is eliminated, instead, we use persistent messages as the means to store the information relevant to the execution of a process. Our approach is to completely distributed the execution of a process so individual nodes are independent. The advantages of this approach are increased resilience to failures and greater scalability and flexibility of the system configuration.