分布式多层架构是目前企业构建大型应用系统所首选的结构，开发分布式多层架构的焦点集中在中间层。
The distributive multi-layer architecture is now considered an optimum choice by companies structuring large-scale systems and its development focuses on the middle layer.
在多层架构的分布式软件系统中，如何在层间交换数据，采用何种粒度的对象交换数据，是系统构建时经常遇到的问题。
It is a common problem for the designer to exchange data in different layers and use which kind of granularity in multi-layers architecture software system.
通过研究比较，给出了一种基于分布式组件技术的多层软件体系架构的平台搭建方案。
In the research, a constructing method of multi-layer software architecture based on distributed component technology is presented.
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