【英语版】国际标准 ISO/TS 5569:2023 EN Health informatics — Conceptual data model for Chinese medicinal herbs 健康信息学—中药材的概念数据模型.pdf,ISO/TS 5569:2023 EN Health informatics — 中草药健康信息化的概念数据模型。 具体来说,ISO/TS 5569是一个标准
The relational databases provide an ultimate solution, whilst the E-R diagram represents a common graphical tool for conceptual data modelling and relational database design. Within the paper we develop and propose a logical data model of the modern human migration.Ilija Hristoski...
a conceptual data model of datum systems:一个概念性的数据系统的数据模型 文档格式: .pdf 文档大小: 298.09K 文档页数: 54页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: 文档分类: 幼儿/小学教育--教育管理 文档标签: aconceptualdatamodelofdatum ...
PDF 引用 收藏 共1个版本 暑期限定特惠:6月17日-8月11日,专业版用户畅享0豆无限使用AI辅读功能~摘要原文 In this article, we describe a conceptual model for video games and interactive media. Existing conceptual models such as the Functional Requirements for Bibliographic Records (FRBR) are not ...
database schemata expressed in an extended version of the Entity-Relationship Data Model; it is able to in- troduce complex descriptions of the structure of aggregated entities and multiply hierarchically or- ganised dimensions; it is based on Description Logics, a class of formalisms for which...
to verify the assumptions made in its creation. Batra and Davis state that the conceptual model must be capable of providing a structure for the database along with the semantic constraints for communication with users. The conceptual data model also serves as a representation of the database...
Conceptual Models and the Cuban Missile Crisis_Allison英文资料.pdf,Conceptual Models and the Cuban Missile Crisis Graham T. Allison The American Political Science Review, Volume 63, Issue 3 (Sep., 1969), 689-718. Your use of the JSTOR database indicates
ConceptualModel Biodiversity and Conservation Data Model Summary Description of Thematic Groups Biodiversity Unit Group The biodiversity unit is an element of natural diversity that is described for conservation purposes. Different types of biodiversity units have been identified in the model, ranging from ...
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View PDFAbstract Background Medical nonpersistence is a worldwide problem of striking magnitude. Although many fields of studies including epidemiology, sociology, and psychology try to identify determinants for medical nonpersistence, comprehensive research to explain medical nonpersistence from an economics...