摘要： 将开放实时分布式系统的需求分离为功能需求、监视需求和操控需求，并将其映射为具有协同层和功能层的软件模型，利用Java消息服务和EJB技术，提出了一个实现构架，以车辆导航系统为例说明模型和构架的交互性和实时性。

关键词: 开放分布式计算, 时限模型, 关注点分离, 时控协同器, 交互协同器

Abstract: This paper separates requirements of open distributed system into functional requirement, monitoring requirement and manipulating requirement, mapping the system as a coordination layer and a function layer. Based on Java information service and EJB technology, it proposes an infrastructure implementation. Experimental results of vehicle navigation system show the module’s interactivity and real-time interaction.

Key words: open distributed computation, time-constrained model, separation of concerns, timing coordinator, interaction coordinator

中图分类号: 

• TP391