需求可追溯性是两个需求之间的关系，这两种需求代表了工件之间的源、衍生或者附件。
Requirements traceability is a relationship between two requirements that implies the source, derivation, or dependencies between the artifacts.
一个软件构架确定了主要的组件和它们之间的交互作用，两个组件之间的依赖性以及这些组件对于需求的可追溯性。
An architecture identifies the major components and their interactions, the dependencies between components, and traceability from these components to the requirements that they realize.
让我们考虑一下跨多个产品发布版本来维护对需求变化的可追溯性的两种方法。
Let's consider two methods for maintaining traceability of changes to requirements across multiple product releases.
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