因此如何将旧的遗留系统再生至一个具有高可靠性、易维护性，又能方便弹性地根据企业策略而调整服务内容的可扩展性系统，是一项迫切的需求。
Consequently, how to reengineering the Legacy System to a high reliability, maintainability Scalable System that can adjust the service content conveniently and flexibly is an urgent requirement.
如果确认解析器没有对模式定义进行高速缓存，这种请求的开销会使系统失去可扩展性。
The overhead of this request can make a system unscalable if the validating parser does not cache the schema definitions.
不断增加范围和复杂性的系统的可扩展性：基本的RUP - SE框架和系统开发方法可以被应用于跨多个系统开发范围。
Scalability to systems of increasing scope and complexity: the basic RUP-SE framework and systematic development approach can be applied across the systems development spectrum.
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