该文依照工程化的思想，以容灾系统生命周期模型为基础，提出了容灾系统的需求分析和设计方法，并对主要的容灾技术进行了比较分析。
Based on this model, a new method for disaster tolerance system analysis and design is proposed and discussed. At last main disaster tolerance technologies are compared.
从建议到部署，在分布式环境中，一些GDD模型要求软件开发工具支持整个软件或系统开发生命周期。
Some GDD models require software development tools that support the entire software or systems development lifecycle from proposal through deployment in a distributed context.
我们建议使用以事件模型和生命周期为中心的信息架构作为业务需求和系统架构的双向翻译平台。
The information architecture that we propose is centered around the event model and lifecycle can be used as a two-way translation platform for business requirements and system architecture.
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