【摘要】 软件解决方案所面临的问题是在部署体系结构时不断增加的多态性、复杂性和分布性,这只能使问题复杂化。随着互联网络技术的出现,系统设计者必须重新评估多层体系结构的适用性,并且评定对每一层来说哪些技术是适用的。这篇文章重新评估多层体系结构中的设计问题,讨论在应用程序间的消息传递中,认为传送代码还是传送数据是比较好的方法。基于J2EE和.NET架构技术,文章最后推荐一个多层体系结构中一个以数据为中心的设计;根据已有的经验,建议软件开发中同样提出一个改良的交互式软件过程的螺旋模型。更多还原

【Abstract】 The increasing heterogeneity,complexity and distributed nature of deployment architectures only serve to compound the prob-lems faced by software solutions.With the advent of the Internet and web technologies,system designers have had to reevaluate the ap-plicability of multi-tier architectures,and assess which technologies are appropriate at each tier.The design issues of multi-tier architecture is evaluated and debate whether it is good to move code or data to communicate messages between applications is debated.Based on the latest technology of J2EE and.NET framework,recommend a data centric design of multi-tier architecture.Based on experience a modified interactive software process spray model is suggested.更多还原