这其中最流行的是实体关系图( Entity-Relationship Diagram, E R D),它是P. P.Chen 在1 9 7 6年提出来的。
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...据流图描绘了系统中发生的过程一样,实体联系图( entity-relationship diagram,E R D)描绘了系统的数据关系 分析实体联系图有助于对业务或系统数据组成的理解和交互,并暗示产品将有必要包含一...
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...据流图描绘了系统中发生的过程一样,实体联系图( entity-relationship diagram,E R D)描绘了系统的数据关系 分析实体联系图有助于对业务或系统数据组成的理解和交互,并暗示产品将有必要包含一...
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下面的设计器图表通常用于数据库的物理设计与逻辑设计过程: 实体关系图(Entity Relationship Diagrammer,E R D)—E R D模拟一个组织所需要的 信息。应该包括项目组与最终用户之间的交流与一致意见。
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E-house China R&D Institute 易居房地产研究院
R&D, i. e. Research & Development, is a whole process that includes basic theory research, technology research, products development and marketing development.
即研究与开发,是指从基础性研究一直到科研进入应用领域实现产品开发和商业化的整个行为过程。
Ninth, optimize various mechanisms in the enterprise, i. e. the systems of brand, culture, marketing, R&D, and human resources.
九是优化机制,企业的品牌、文化、营销、研发、人才五大体系;
But the calculated mean energy of adsorption, e, from the D-R isotherm, gives information about the chemical or physical properties of the sorption.
但是,从d - R等温线计算所得的平均吸附能量,E,给出了吸附的化学或者物理性质的信息。
A list of American colleges and universities that offer financial aid to foreign students can be found at edupass.org -- e-d-u-p-a-s-s dot o-r-g.
VOA: special.2009.02.05
There was a huge old insurrection called the Fronde, f-r-o-n-d-e.
有一起被称为投石党运动的起义
And this one, I was skiing out in Salt Lake City and the name of a building out there was Reid with R-E-I-D and it sounded good at the time."
VOA: special.2009.07.06
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