Study on group communication mechanism of migrating instances in migrating workflow management system
迁移工作流管理系统中迁移实例组通信机制的研究

Migrating Instance (MI) is a task executor in the migrating workflow management system, and can be cloned or derived from authorized work palaces in order to support decomposing and paralleling in business process. Migrating instance together with its clone and derivation composes a cooperative group. In this paper, a migrating instances group communication model based on service domain was proposed. Moreover the model definition and architecture were given, the reason for communication scheme choice was proved, and the key communication algorithms were depicted. The experimental results show that the model not only can ensure the message be transferred fast and reliably, but also can save the network bandwidth and computing resources of nodes dramatically, therefore the model can meet the requirements of high-efficient quality and scalability in migrating workflow system.