• Journal of the Society of Naval Architects of Korea
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• v.34 no.1
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• pp.111-121
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• 1997

This paper is aimed to prose a welding information system which is usable for ship design and production processes. For this work, the welding information related to shipbuilding is analyzed systematically. Database system and object-oriented paradigm are integrated to describe the welding information model of ship structure. Event-driven programming technique and graphical user interface are used to provide the richer interactive environment and the flexibility for the application. Test program is developed to verify the consistency of the created model and to see the effectiveness of the used programming technique.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11c
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• pp.1533-1536
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• 2003

XML이 기업간 데이터 교환뿐만 아니라 차세대 기업 정보시스템의 핵심기술로 떠오르면서 XML 데이터를 원형 그대로 저장하는 데이터베이스 관리시스템이 차세대 DBMS (DataBases Management System) 플랫폼으로 부상하고 있다. DBMS 업계는 XML이 현재 전자상거래 등 기업간 정보유통에 주로 적용되고 있으나 웹서비스가 본격 구현되면 기업간시스템도 XML 기반으로 점차 전환될 것으로 보고 XML 데이터의 효율적인 저장 관리하는 데이터베이스 개발에 경쟁적으로 나서고 있다. 현재 주류를 이루는 관계형 데이터베이스는 XML 데이터를 지원하기 위해 다른 포맷의 데이터를 XML로 변환하거나 반대의 작업을 하는 툴을 이용하고 있으나, DBMS 처리속도가 떨어지는 등의 문제가 있어 XML 데이터를 원형 그대로 저장하거나 불러올 수 있는 DBMS 수요가 늘어날 것으로 전망된다. 그러므로 본 논문에서는 XML 데이터를 효율적으로 처리할 수 있는 3단계를 통한 데이터베이스 스키마와 XML Schema로의 변환을 위한 통합 설계 방법론을 제안한다.

• Proceedings of the KIEE Conference
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• 2003.11a
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• pp.315-317
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• 2003

Power system is becoming more and more complex and large. And power consumption increases rapidly according to the industry development. There is an ample possibility for a fault in proportion to these facts. Therefore power system engineer is requested to abilities, fault analysis and fault prevent. This paper handling result data by Object Oriented Database(OODB) because OODB has advantages abut flexibleness and recycling. Besides this paper presents fault analysis program by Graphic User Interface(GUI) to understand easily program using method.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.295-297
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• 2004

유전자의 생물학적 기능을 밝히고 세포 내 상호작용을 이해하는 것은 post-genome era의 가장 중요한 작업 중 하나이다. 이러한 세포 내 상호작용은 복잡한 생화학적 네트워크를 형성하게 되며 그 중 Metabolic pathway(대사 경로)는 생물 시스템을 이해하는데 가장 중요한 부분을 차지하게 된다. 대사 경로를 분석하기 위하여 분자의 기능 및 생화학적 프로세스에 대한 정보를 데이터베이스에 저장.관리해야하고, 사용자의 다양한 질의에 대하여 관련정보를 검색하여 GUI환경에서 제공해야 한다. 이 논문은 대사 경로 정보를 객체 데이타베이스 형태로 모델링하여 구축하고, 사용자가 관심있는 정보를 SBML형태로 제공하는 대사경로 데이타베이스의 설계 및 구현에 관해 다룬다.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10a
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• pp.63-65
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• 1999

최근 인터넷을 통한 정보 교환을 위해 XML(eXtensible Markup Language)에 대한 저장 및 검색에 대한 연구가 활발히 진행되고 있다. 본 연구에서는 객체지향형 데이터베이스를 이용하여 대량의 XML문서에 대한 저장 및 검색을 지원하는 XML 문서 저장 시스템을 설계하였다. 제안하는 데이터 모델은 XML 문서의 삽입 및 갱신이 용이하도록 분할 방식을 사용하였으며, 객체지향형 데이터베이스에서 구조정보를 추출하기 위한 새로운 모델을 제시하고 있다. XML 문서의 주된 구조정보를 갖는 엘리먼트와 에트리뷰트를 DTD별로 저장하고, 하나의 DTD를 따르는 문서 인스턴스들에 대한 관계를 리스트롤 이용하여 저장해 둠으로서 객체지향형 데이터베이스 내에서 임의의 위치에 존재하는 객체에 대한 접근을 빠르게 지원할 수 있도록 설계하였다.

• Journal of the Korea Society of Computer and Information
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• v.7 no.1
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• pp.54-61
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• 2002

In this paper, we implement the XML modeling and data modeling by the class diagram that is made by the use case after drawing out the sequence diagram. For the XML modeling, the guiding line to map the UML classes on the XML document will be presented. Then, an example to generate the ie DTD from the UML classes will be shown under the presented guiding line. In the data modeling, the transformation method from the In classes into the object-oriented database also will be proposed. Finally, we will give an example developed by the Proposed transformation method.

• Journal of the Korean earth science society
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• v.21 no.6
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• pp.719-733
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• 2000

Normally, a digital geologic map can be defined as mappable one whose spatial information with geographic information details and geologic database attribute, recorded in a digital format that is readable by computer. It shows fundamentally two different conceptual perspectives: cartography for digital mapping and analysis for geo-data processing. While, as both aspects basically relate to natural entities and their interpretation of complex features fused with multi-sources, digital geo-data mapping or geologic mapping, it should be distinguished from digital mapping in engineering such as UIS(Urban Infomation System) and AM/FM(Automated Mapping/Facilities Management). Furthermore, according to short-cycled development of GIS(Geographic Information System) software architecture based on IT(Information Technology) and wide expansion of GIS applications' fields, the importance of domain analysis and application model is emphasized at digital geologic informatizaion. In this paper, first terms and concepts of geo-data model with general data modeling aspects are addressed, and then case histories for geo-data modeling and several approaches for data modeling in GIS application fields are discussed. Lastly, tentative conceptual geo-data modeling by using UML(Unified Modeling Language) of OO(Object-oriented) concepts with respect to USGS/AASG geo-data mode is attempted. Through this approach, the main benefits for standardization and implementation lineage with conceptual model in consideration to reusability are expected. Conclusively, it is expected that geo-information system and its architecture by UML is the new coming key approach for the GIS application in geo-sciences.

• Journal of the Korea Society of Computer and Information
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• v.20 no.2
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• pp.99-112
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• 2015

Datum point for displaying location and altitude of point has being advantage usefully in various measurement parts. However, datum point has been increasing loss cases owing to weather changes and stratum changes and neglecting meaninglessly. In this paper, we design and implement a multi electronic measurement system monitoring software with functions such as include maximize utilization of existing measurement datum system as well as collected various environment data and detection stratum changes of surround area. Proposed software is implemented to support that reusability and extensibility of software using object oriented modeling method. Our software supports a GUI for electronic measurement datum point administrator as well as for web user and mobile user. Our system can support a graph GUI for various data analysis and reposition in realtime to database that measured location information and various sensing information to prevent loss of electronic measurement datum point and to detected stratum changes. In addition, we include a QR code and RFID recognition function. Finally, we suggest performance evaluation result to confirm stratum changes detection and GPS location error rate.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.52-59
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• 2016

For almost of concrete structures by placing in cold weather, it is very important that the selection of curing method at early aged construction stage. The Exothermic curing method with hot wire and rapid hardening cement is used mostly to prevent the initial cracks and the strength decrease. Most of the construction sites, however, have not been applied to the optimal curing method caused by the simple approaches and the empirical judgements. Therefore, this paper has proposed a evaluation algorithm of the exothermic curing method for representing heating temperature, period, position of hot wire by analyzing the transient heat transfer solution. This has been implemented, moreover, using an object oriented programming language to develop structural analysis system taking account risk parameters. This system is composed of input module, database module, database store module, analysis module, and result generation module. Linkage interface between the central database and each of the related module is implemented by the visual c# concept. Graphic user interface and the relational database table are supported for user's convenience.

• The Transactions of the Korea Information Processing Society
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• v.6 no.2
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• pp.425-438
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• 1999

In recent days network computing technologies have bee developed rapidly and the extended use of Internet applications for enterprises such as internet/extarnet in and between enterprises has been increased enormously. Therefore the business in the future will be executed by virtual enterprise. Virtual enterprises which is based on information sharing between enterprises are composed of work processes related to information exchange between virtual enterprises, the team members who are representatives of the organizations that are participated in the actual business of virtual enterprises, and members who are representatives of the organizations that are participated in the actual business of virtual enterprises, and environment that are provided by supporting CALS(continuous Acquisition and Life cycle Support or commerce At light Speed). Supporting system of IDE(Integrated Data Environment)for CALS implementation that is provided as an environment of virtual enterprises has to ensure the autonomies of local data and to provide the accessibility of heterogeneous database of enterprises on network transparently for giving user a single global view of data. This paper introduce the design and implementation of the database broker system that can be accessed data transparently by the suers of participated enterprises in the integrated data environment supporting virtual enterprises. The system uses java/CORBA technology in Web environment and Object Query language (OQL) to process the queries of relational database system, object-oriented database system, and file information.