Entity-Relationship model(实体关系模型):公司的实体,属性和关系的详细 逻辑表示. Fact-finding(事实发现):使用诸如面谈和提问等技术收集关于系统的事实, 需求和 性能的形式化过程.
基于1个网页-相关网页
这些模型可能非常详细，显示全部的实体、关系和属性结构，甚至具有粗粒度概念之间的核心关系的更高级的可视化表示。
These models can be very detailed, showing full entity, relationship and attribute structures and can even have higher-level visualization of the core relationships between coarse grained concepts.
逻辑数据模型在此基础上更进一步，分析数据的详细结构，包括关系、子类型、属性和包含关系。
A logical data model takes this a step farther, analyzing the detailed structure of the data, including relationships, sub-typing, attribution and containment.
文章在对制造资源与并行工程、制造资源和智能CAPP相互关系详细分析的基础上，基于特征建模方法的原理，提出了过程特征的概念及其属性描述。
After comprehensive analysis of the relationship between concurrent engineering, manufacturing resource and intelligent CAPP, we present a new concept "process feature" and its attributions.
应用推荐