一种基于COM+的中间件平台的研究与设计

传统基于COM＋的三层架构开发模式在可重用性、可维护性和可集成性方面存在不足。文章以实现层与层之间的松耦合为出发点，将中间件平台技术引入传统的三层架构，设计并实现了一种基于COM＋组件技术的中间件平台，为业务逻辑的定义、实现与运行提供了统一的规范和环境，为复杂应用软件提供集成框架，同时支持统一数据访问、灵活实现业务处理过程，为三层架构软件的开发、运行提供了支撑环境。并与传统的开发模式进行了分析、比较，验证了本平台的有效性。

Research and Device of a Middleware Platform Base on COM Plus

Traditional development mode of three-tier architecture based on COM plus has defects in reusing,maintaining and integration.This paper starts with achieving the weak coupling of tier to tier in three-tier architecture,combines middleware platform with three-tier architecture,designs and achieves a middleware platform based on COM plus,provides a united norm and environment for the defining,achievement,execution of business logic,provides an integrated frame for involved application,supports united data access and flexible achievement of business logic,provides a supporting environment for development and execution of three-tier architecture software.At the same time,the paper analyses and compares with traditional development mode,which shows good performance of this middleware platform.