• Title/Summary/Keyword: relationship entity

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ER2XML: An Implementation of XML Schema Generator based on the Entity-Relationship Model (ER2XML :개체-관계 모델을 기반으로한 XML Schema 생성기의 구현)

  • Kim Chang Suk;Son Dong-Cheul
    • The KIPS Transactions:PartD
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    • v.12D no.1 s.97
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    • pp.1-12
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    • 2005
  • The XML is emerging as standard language for data exchange on the Web. Therefore a demand of XML Schema(W3C MLL Schema Spec.) that verifies XML document becomes increasing. However, XML Schema has a weak point for design because of its complication despiteof various data and abundant expressiveness. This paper shows a simple way of design for XML Schema using a fundamental means for database design, the Entity-Relationship model. The conversion from the Entity-Relationship model to XML Schema can not be directly on account of discordance between the two models. So we present some algorithms to generate XML Schema from the Entity-Relationship model. The algorithms produce XML Schema codes using a hierarchical view representation. An important objective of this automatic generation is to preserve XML Schema's characteristics such as reusability, global and local ability, ability of expansion and various type changes.

A Transformation Military Databases based on the Relational Data model into XML Databases (관계형 데이터 모델 기반 군사용 데이터베이스의 XML 데이터베이스로의 변환)

  • Kim, Chang-Seok;Kim, Eong-Su
    • Journal of National Security and Military Science
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    • s.1
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    • pp.269-310
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    • 2003
  • AS Extensible Markup Language(XML) is emerging as the data format of the Internet era, there are increasing needs to efficiently transform between database and XML documents. In this paper, we propose a schema transformation method from relational database to XML database. To transform the schema, we represent input schema as Entity-Relationship diagram. Entity-Relationship model translator scans the input Entity-Relationship diagram using BFS (breadth First Search) and translates the diagram into hierarchical structure model. The XML Schema generator produces XML Scema code using the transformed hierarchical structure model. The proposed method has a merit that having reusability facility of XML Schema property in comparison with existing researches.

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An Intermediate Model for Development of a Simulation Program of a Production System with Robots (로봇 응용 생산시스템의 시뮬레이션 프로그램 개발을 위한 중간모델)

  • Kuk, Kum-Hoan
    • Journal of the Korean Society for Precision Engineering
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    • v.16 no.7
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    • pp.132-143
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    • 1999
  • In this study, an intermediate model is presented as a new method for development of a parametric simulation program. This model enables us to analyze effectively the static and dynamic structure of a real production system. The static structure of the real system can be modelled in an entity-relationship diagram and the dynamic structure of the real system in a Petri net. The intermediate model consists of an entity-relationship diagram and a Petri net. Using this intermediate model man can not only reduce the time and cost for simulation program development, but also increase the modelling reliability of the developed simulation program. To show the usefulness of this intermediate model. the intermediate models for two production subsystems, manufacturing sub-system and transport subsystem, are set up.

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Semantic Object Modeling for Shopping Mall Database Design (쇼핑몰 데이터베이스 설계를 위한 의미객체 모델링)

  • Jeon, Tae-Bo;Kim, Ki-Dong;Oh, Jun-Hyung
    • Journal of Industrial Technology
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    • v.25 no.A
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    • pp.123-131
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    • 2005
  • Semantic object model has widely been recognized as an alternative data modeling approach to entity-relationship model for database system design. In this study, we have presented a semantic object model for intermediary type shopping mall consisting of multiple buyers and sellers. Essential processes and information with regard to the customer management, product management, price estimation, product order etc. have been considered for this study. Upon careful examination and analysis of them, a detailed semantic objects and attributes have been drawn and structured into semantic object diagrams. The final objects were converted into an entity-relationship diagram so that intuitive comparison could be made for relational database design. The results in this study may form a conceptual framework for both academic concerns and more complicated system applications.

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A Study on the Communication Relationship Structure and Expression Methods in Interior Design - Focused on the Practical design process of communication - (인테리어 디자인에서 커뮤니케이션 관계구조와 표현방법에 관한 연구 - 실무 디자인 프로세스 커뮤니케이션 중심으로 -)

  • Seo, Ji-Hye;Hong, Il-Tae
    • Korean Institute of Interior Design Journal
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    • v.22 no.5
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    • pp.199-206
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    • 2013
  • Design is one of diverse human communication activities. Development of technologies has led to execution of more active design communication functions, stirring social and cultural changes. The concept of design communication has become stronger by overcoming the limitations of verbal communication and expanding the methods of communication. These social changes are highlighted In the design of modern space. Even though communication in interior design activities is so important, detailed studies on communication of each entity are still very insufficient. Design communication refers to tools and activities for overall communications in the design process. In design activities, relevant communication is indispensible. Therefore, studies on practical communication methods are essential for accurate communication of content that has to be shared in the results or in the process of obtaining the results, rather than only focusing on the future techniques and functions of design. In other words, improving the efficiency of interior design communication requires establishing a communication relationship structure of each entity, which calls for proper expression methods depending on each entity. Therefore, this study is aimed at exploring efficient expression methods in line with the relationship structure of each entity in the interior design process.

Conceptual Data Modeling: Entity-Relationship Models as Thinging Machines

  • Al-Fedaghi, Sabah
    • International Journal of Computer Science & Network Security
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    • v.21 no.9
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    • pp.247-260
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    • 2021
  • Data modeling is a process of developing a model to design and develop a data system that supports an organization's various business processes. A conceptual data model represents a technology-independent specification of structure of data to be stored within a database. The model aims to provide richer expressiveness and incorporate a set of semantics to (a) support the design, control, and integrity parts of the data stored in data management structures and (b) coordinate the viewing of connections and ideas on a database. The described structure of the data is often represented in an entity–relationship (ER) model, which was one of the first data-modeling techniques and is likely to continue to be a popular way of characterizing entity classes, attributes, and relationships. This paper attempts to examine the basic ER modeling notions in order to analyze the concepts to which they refer as well as ways to represent them. In such a mission, we apply a new modeling methodology (thinging machine; TM) to ER in terms of its fundamental building constructs, representation entities, relationships, and attributes. The goal of this venture is to further the understanding of data models and enrich their semantics. Three specific contributions to modeling in this context are incorporated: (a) using the TM model's five generic actions to inject processing in the ER structure; (b) relating the single ontological element of TM modeling (i.e., a thing/machine or thimac) to ER entities and relationships; and (c) proposing a high-level integrated, extended ER model that includes structural and time-oriented notions (e.g., events or behavior).

Towards Effective Entity Extraction of Scientific Documents using Discriminative Linguistic Features

  • Hwang, Sangwon;Hong, Jang-Eui;Nam, Young-Kwang
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.3
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    • pp.1639-1658
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    • 2019
  • Named entity recognition (NER) is an important technique for improving the performance of data mining and big data analytics. In previous studies, NER systems have been employed to identify named-entities using statistical methods based on prior information or linguistic features; however, such methods are limited in that they are unable to recognize unregistered or unlearned objects. In this paper, a method is proposed to extract objects, such as technologies, theories, or person names, by analyzing the collocation relationship between certain words that simultaneously appear around specific words in the abstracts of academic journals. The method is executed as follows. First, the data is preprocessed using data cleaning and sentence detection to separate the text into single sentences. Then, part-of-speech (POS) tagging is applied to the individual sentences. After this, the appearance and collocation information of the other POS tags is analyzed, excluding the entity candidates, such as nouns. Finally, an entity recognition model is created based on analyzing and classifying the information in the sentences.

A Study of ME St CF Evaluation for EJB Bean Class Based Design Pattern (디자인패턴 기반 EJB Bean 클래스의 MIF와 CF의 측정에 관한 연구)

  • 이돈양;신재준;송영재
    • Proceedings of the IEEK Conference
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    • 2003.07d
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    • pp.1613-1616
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    • 2003
  • We will take a multitude EJB Design Patterns that you can harness to enhance your EJB Project today In this paper, we propose the EJB Based Entity Bean DBMS connecting system. Generally, EJB Based Entity Beans are respectively connected by DBMS. Therefore, for the this problems we suggest that Abstract Factory pattern uses DBMS connecting of Entity Beans. As a result, we evaluate MIF and CF in every class relationship.

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A Generation from Entity-Relationship Model to XML Schema Model (개체-관계 모델에선 XML Schema의 생성)

  • Kim, Chang-Suk;Kim, Dae-Su;Son, Dong-Cheul
    • Journal of the Korean Institute of Intelligent Systems
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    • v.14 no.6
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    • pp.667-673
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    • 2004
  • The XML is emerging as standard language for data exchange on the Web. Therefore the demand of XML Schema(W3C XML Schema Spec.) that verifies XML document becomes increasing. However, XML Schema has a weak point for design because of its complication despite of various data and abundant expressiveness. This paper shows a simple way of design for XML Schema using a fundamental means for database design, the Entity-Relationship model. The conversion from the Entity-Relationship model to XML Schema can not be directly on account of discordance between the two models. So we present some algorithms to generate XML Schema from the Entity-Relationship model. The algorithms produce XML Schema codes using a hierarchical view representation. An important objective of this automatic generation is to preserve XML Schema's characteristics such as reusability, global and local ability, ability of expansion and various type changes.

Research on the Process of Constructing Application Systems Using the E-R Model and an Automated Application Generator (E-R 모델과 자동생성기를 이용한 응용시스템의 구축 과정에 관한 연구)

  • Chung, Il-Choo
    • Journal of Information Technology Applications and Management
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    • v.12 no.4
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    • pp.133-155
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    • 2005
  • This Paper makes an attempt to suggest a process of automatically generating application software based on the Entity-Relationship model 1. The designer develops an E-R model of an real-world system. 2. The designer inputs the entity and relationship types, and attributes shown in the E-R model, and also the basic operations of the application system to the software generator. 3. The application generator produces database schema and link information between application programs, and then automatically generates a stereo-type application system. In order for the automated application generator to build the application system in a systematic way, four basic program generation rules have been suggested. A set of computer programs have been developed in order to show the applicability of the automated software generation process suggested in this paper. By following each rule with the generator, the designer can build an application in an efficient manner compared with traditional (manual programming) approaches. It has been demonstrated from the case study that the idea of applying an automated generator in systems development based upon the E-R model is feasible.

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