需求工程是软件系统开发生命周期的初始阶段，其最终结果是得到关于用户需求的准确、全面、形式化的需求描述。

Requirements Engineering is the initial stage in the software development life cycle, whose final product is the precise, complete, formal document about the users 'needs.

youdao

软件体系结构是软件工程学科中一个较新的研究领域，目前对软件体系结构的形式化描述及求精方法的研究仍处于探索阶段。

Software architecture is an immature field in the discipline of software engineering. Researchers are still exploring the formalized description and refinement of software architecture.

youdao