为确保新的或者升级的系统支持这个需求，软件开发组必须采用他们自己的严格的方法在整个系统开发过程中来追踪商业需求。
To ensure that new or upgraded systems support this need, software development teams must adopt their own rigorous methods for tracing business requirements throughout the system development process.
在传统的软件开发中，跟踪变更的方法是使用某种类型的变更管理系统、过程或工具。
The traditional approach to keeping track of changes in software development is to use some type of change management system, process, or tool.
因此，随后的开发方法不是典型的“瀑布”方案，在瀑布方案中，收集需求之后进行分析和设计，并进行系统的实现。
Hence, the development approach that is followed is not the classic "waterfall" scenario, where requirements gathering is followed by analysis and design, leading to the implementation of the system.
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