• 정보화연구
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• 제11권2호
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• pp.225-233
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• 2014

오디오 산업은 프리미엄 산업으로써 나날이 발전 하고 있다. 입체 음향 시스템에 관한 연구는 많이 진행 되고 있다. 하지만 Audio database, algorithm, evaluation, metadata scheme 이 모두 각각 이루어지고 있다. 하나의 시스템에서 만들어진 audio 알고리즘을 평가 하고, 저장 할 수 있다면 입체 음향 오디오 연구 발전에 도움이 될 것이다. 그래서 이 논문 에서는 실감형 3D 오디오의 알고리즘을 시스템 적으로 평가 할 수 있는 Database Architecture 제안 하고, 이 Database system 구현을 위하여 XML metadata scheme를 정의 하였다. 본 논문에서는 새로운 오디오 평가 DB를 제시하고, 이를 체계적으로 구현하기 위한 설계를 제시하고자 한다.

• 한국정보처리학회논문지
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• 제5권4호
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• pp.873-882
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• 1998

현재 병렬 데이타베이스 컴퓨터가 광범위하고 성공적으로 활용되고 있다. 이의 구조로는 주기억 장치와 디스크를 공유하지 않는 구조, 두가지를 모두 공유하는 구조, 디스크만을 공유하는 구조, 그리고 절충형 구조 등의 네가지 구조가 있다. 이 논문에서는 데이타베이스 컴퓨터 구조의 성능을 비교 분석하기 위하여 데이타베이스 컴퓨터 구조를 추상적인 모형으로 정의하고, 각각의 모형에 대하여 절충형 해쉬 조인 연산의 수행시간을 수식화한 성능식을 구하여 여러 가지 데이타베이스 컴퓨터 구조 모형의 수행시간을 비교 분석한다.

• 대한산업공학회지
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• 제41권2호
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• pp.162-172
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• 2015

This paper proposes a Product Data Management (PDM) system architecture that supports end-user computing for small and medium businesses (SMBs) in Korea to build and maintain efficient and sustainable information systems for their product development. Its open database with relational tables enables existing common application programs such as Microsoft office suites to access product data in PDM systems. In addition, the interactive query processor provided by database management systems helps design engineers to build ad hoc queries in standard SQL database language to response different data requirements during their product development. The PDM architecture with the open database allows design engineers or technical staffs in SMBs to build and maintain their application programs for product development by themselves. To show the feasibility of the proposed architecture, this study implemented a prototype PDM system based on the architecture and database, and represents real-world product data with the implemented PDM system.

• 한국정보통신학회논문지
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• 제23권5호
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• pp.523-532
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• 2019

마이크로 서비스 아키텍처는 매우 밀접한 비즈니스 기능을 수행하기 위한 목적으로 시스템을 소형 경량 서비스로 분할하는 것에 중점을 두고 있기 때문에 민첩성, 개발 생산성, 신뢰성, 배포 용이성에만 집중하는 경향이 있다. 마이크로 서비스 아키텍처에서 바라보는 데이터베이스는 단지 데이터를 저장하고 추출하는 파일 혹은 스토리지이며, 소프트웨어 개발 편리성과 확장성을 위해서 데이터 품질은 희생될 수 있음을 강조한다. 데이터베이스 구조와 데이터 의미를 이해하기 위해 사용되는 데이터베이스 리버스 엔지니어링은 비즈니스 의사 결정을 위한 데이터 활용을 위해 필요하다. 하지만, 데이터 품질을 경시하는 마이크로 서비스 아키텍처에서는 리버스 데이터베이스 엔지니어링 적용에 어려움이 있다. 본 연구는 해결책으로써 개념 데이터 모델 복원 시 마스터 데이터를 활용한 데이터 리버스 엔지니어링 방법을 제안한다. 적용 사례로 마이크로 서비스 아키텍처로 구현된 반품 서비스 데이터베이스에 제안 방법을 구현하여 적용 가능성을 검증하였다.

• 한국전자거래학회지
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• 제2권2호
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• pp.155-169
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• 1997

The CALS integrated database is a key information technology in which CALS implements an information sharing system to enable digital data transfers for technical and non-technical information in distributed and heterogeneous environments. Such heterogeneously distributed CALS information needs to be systematically incorporated so that it can provide a global data view for CALS users. In this paper, we investigated the technologies of CALS integrated database, and proposed a system prototype to implement an integrated data environment (IDE) utilizing distributed object environments CORBA (Common Object Request Broker Architecture).

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1491-1496
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• 2009

Because of the development of advanced construction technology, the inner environments of building become more and more complicated, which may result in many problems. The administer may forget where they put up the certain picture, and search for it all over the building, or they underestimate the number of the visitors, and find the situation is out of control, while the pedestrian may get lost, and after making their efforts, they found they turned back to the origin point again. So it is very necessary to establish an indoor spatial database. On one hand, it is able to assist administrator to manage the property and human flow inside the building, on the other hand it could help the pedestrian find the way easily especially when they are not familiar with the building or there is an emergency. This paper focused on how to create the indoor spatial database including both static database and moving objects database. The static database is built on the basis of 3D building models, and the moving objects database gets information from many kinds of cameras and sensors installed in the building. And at the same time the paper discussed the practical use of indoor spatial database mainly in three aspects including consistency management, building restructure, and pedestrian navigation.

• 반도체디스플레이기술학회지
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• 제3권4호
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• pp.13-17
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• 2004

As the usage of wireless LAN becomes common in working environment, the number of database systems that support both wired and wireless users increases rapidly. The characteristics of wireless LAN that its speed is slow relatively comparing to wired network and the users in its environment connects to different communication points as they moves creates another challenge to be resolved in database systems. In the environment of hybrid communication systems, wired and wireless for voluminous data amount and a number of users, the two layer architecture of the conventional client-server database systems has limitation in the system performance. This is due to that server is the only point of data service in client-server database systems. In this paper, we discuss a new extended database system architecture that data services are distributed among servers and clients based on user database access patterns in order to improve system performance. We analyze the expected system performance by using simulation technique and prove the practical utilization of the system by demonstrating experimental results.

• 경영정보학연구
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• 제3권2호
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• pp.277-288
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• 2001

Of critical importance to the success of any e-commerce site are the two factors: rapid application development and quick response time. A three-tier architecture composed of presentation layer, business layer, and data access layer emerges to allow rapid changes in user interface, business logic, and database structures. Too often, such a logical three-tier architecture is considered as requiring a three-tier physical architecture: Web server, application server, and database server running on separate computers. Contrary to the common belief, a Web stress test reveals that the three-tier logical architecture implemented on a two-tier physical platform guarantees a quicker response time due to the reduction in cross-machine communications. This would lead business firms to economize their spending on e-commerce: increasing the number of physical servers to expedite transaction is not necessarily the best solution. Before selecting a particular hardware configuration, a Web stress test needs to be conducted to compare the relative merits of alternative physical architectures. Together with capacity planning, Web stress test emerges as a powerful tool to build robust, yet economical e-commerce sites.

• 한국전자거래학회지
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• 제4권2호
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• pp.197-208
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• 1999

With developing computer and communication technologies, the concept of CALS system has been popular not only to military but also to commercial industries. The security problem is one of the most critical issues to construct CALS infrastructure. The CALS system needs some security functions such that data confidentiality, integrity, authenticity, availability, and non-repudiation. This paper proposes a security architecture model in CALS. The security architecture model is composed of 5 submodels such that network security model, authentication and key management model, operation and audit model, integrated database security model, and risk analysis model.

• 대한조선학회논문집
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• 제51권1호
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• pp.51-57
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• 2014

In the KIOST MOERI model ice basin, a lot of experiments to find the material properties of model ice and model ship tests are being performed. And therefore many data information was produced, yet it was saved as excel data format. In order to manage and use the data more effectively and systematically, a proper database management is required. To make realistic engineering DBMS(database management system), understanding of test process, the usage of data, design of data schema and computer language and system management are required. In this paper, basic design process and usage of DBMS based on network and multiple user concept is introduced.