摘要
首先从纯理论角度介绍了数据模型的概念模型、逻辑模型和物理模型;然后介绍了运营商的数据模型架构、企业级模型的定位和作用以及系统级模型的定位和作用;最后从用户需求、工程立项、开发设计及上线实施4个环节详细阐述了企业级模型的应用。
It introduces the concept of conceptual model, logical model and physical models from a purely theoretical point of view and examples, describes the architecture of data model, the positioning and role of both enterprise-level model and system-level model in detail. Finally it describes the application of enterprise-level model from the user requirements, project approval, de- sign and development, and implementation.
出处
《邮电设计技术》
2013年第12期10-13,共4页
Designing Techniques of Posts and Telecommunications
关键词
数据模型
概念模型
逻辑模型
物理模型
Data model
Conceptual model
Logical model
Physical model
