Conceptual diagrams

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  • Roughly, shows how relevant system concepts are structured and interrelated. Represented by UML class diagram ...

    ppt56p ken1802 06-04-2011 85 22   Download

  • It is intended that this book be suitable for a variety of engineers and ecologists, who may wish to gain an introduction to the rapidly growing field of ecological and environmental modelling. An understanding of the fundamentals of environmental problems and ecology, as presented for instance in the textbook Principles of Environmental Science and Technology is assumed. Furthermore, it is assumed that the reader has either a fundamental knowledge of differential equations and matrix calculations or has read the Appendix, which gives a brief introduction to these topics....

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  • The first difference to notice is that PRINCE2 is clearly project life cycle based with six out of eight major processes running from "Starting up a project" to "Closing a project". The remaining two, "Planning" and "Directing a project" are continuous processes supporting the other six. Each of these have their respective sub-process totaling 45 in all. Then, feeding into the system, are six "Components" some of which are documents and others that are themselves processes.

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  • Bài giảng Phân tích thiết kế hướng đối tượng - Chương 9 cung cấp các kiến thức cơ bản về thiết kế cơ sở dữ liệu. Các nội dung chính trong chương này gồm có: Biểu đồ dữ liệu mức khái niệm (Conceptual Diagram), biểu đồ dữ liệu mức khái niệm (Conceptual Diagram). Mời tham khảo.

    ppt12p kiepnaybinhyen_02 25-12-2015 8 1   Download

  • In chapter 3, we follow the traditional approach of concentrating on the database structures and constraints during conceptual database design. The design of application programs is typically covered in software engineering courses. this chapter also present the modeling concepts of the Entity-Relationship (ER) model, which is a popular high-level conceptual data model.

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  • Mô hình quan hệ – thực thể ER (Entity Relationship Model – ER Model) được dùng để thiết kế CSDL ở mức khái niệm (Conceptual data modeling) Biểu diễn trừu tượng cấu trúc của CSDL Mô hình ER như 1 công cụ để trao đổi ý tưởng giữa nhà thiết kế và người dùng cuối trong giai đoạn phân tích. Nó độc lập với DBMS và quá trình hiện thực database. 4 .

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  • Hiểu các khái niệm trong việc mô hình hóa dữ liệu ở mức quan niệm: mô hình quan niệm dữ liệu (conceptual data model), mô hình thực thể - mối kết hợp (entity-relationship diagram), loại thực thể (entity type),

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  • classes with no operations: data encapsulation is a design concern; no design decisions here !

    ppt56p ken1802 06-04-2011 37 3   Download

  • A proper treatment of syntax and semantics in machine translation is introduced and discussed from the empirical viewpoint. For EnglishJapanese machine translation, the syntax directed approach is effective where the Heuristic Parsing Model (HPM) and the Syntactic Role System play important roles. For Japanese-English translation, the semantics directed approach is powerful where the Conceptual Dependency Diagram (CDD) and the Augmented Case Marker System (which is a kind of Semantic Role System) play essential roles.

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