逻辑数据结构 meaning in English
logic data structure
logical data structures
Examples
- For sa & d projects , all the relationships among data entities defined in lds are supported by foreign keys in entity description part iii
对于系统分析及设计的计划，所有在逻辑数据结构内界定的数据实体之间的关系，应得到在实体描述第iii部分内的外键码所支援。 - After analyzing the product data exchange and share among cax , pdm and erp , this paper expounded three arrangements of ideas to carry out system integration between pdm and erp at present , then , broadly combining with the last research achievements of information integration theory and method and synthetically considering technical advancement and practical needs of domestic medium and small - scale enterprises . advanced and analyzed three plans to solve the integration problems . in view of reasonable method to organize product information , the paper adopted express model language to describe integrated logic data structure , built integrated data model with o - o feature to support system integration , discussed the method to bring about integrated data model on rdbms , and at last , according to the implementation of cims in yunnei power co . , ltd , developed a integrated data model to exchange and share information between pdm and erp by means of transforming ebom to mbom
本文首先对cax 、 pdm 、 erp之间的产品数据交换与共享作了分析，阐述了现阶段pdm与cax应用系统之间实现集成的三个层次：结合国内外信息集成理论及方法的最新研究成果，综合考虑技术上的先进性和国内中小企业的实际需要，提出并分析了三种解决集成问题的方案；基于产品信息的合理组织方法，采用express模式语言描述集成逻辑数据结构，建立了具有o - o特征的集成数据模型以支持系统集成，并讨论了集成数据模型在rdbms上的实现方法；最后开发了一个以云内动力股份有限公司cims工程为应用背景的集成数据模型，通过利用ebom向mbom转换的技术来实现pdm系统与erp系统之间的信息交换和共享。