The deliverables are a conceptual model and an analytical requirements model.
此阶段的可交付结果是一个概念模型和一个分析需求模型。
Semantics of a requirements model, such as application, projects, packages, requirements, documents, relationships, discussions, attribute values.
需求模型的语义，如应用、工程、包、需求、文档、关系、讨论、属性值等。
Through the analysis of concurrent design's characteristics, this paper describes the relationship between product requirements model and concurrent design process.
通过对并行设计特点的分析，阐述了产品需求模型与并行设计过程的关系。
Through the analysis of concurrent design's characteristics, this paper describes the relationship between product requirements model and concurrent design process.
通过对并行设计特点的分析，阐述了产品需求模型与并行设计过程的关系。
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