• Design & Manufacturing
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• 제10권3호
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• pp.1-7
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• 2016

In the semiconductor industry the memory and chip were developed to high density memory and high performance chip, so circuit design was also high integrated and the test bed was needed to be thin and fine pitch socket. LGA(Land Grid Array) IC socket with thin wall thickness was designed to satisfy this requirement. The LGA IC socket plastic part was manufacture by injection molding process, it was needed accuracy, stiffness and suit resin with high flowability. After injection molding process the side gates were needed to remove for further assembly process. ln this study, the cold press cutting process was applied to remove the gates. For design of punch and die, the cold press cutting analysis was implemented by$DEFORM-2D^{TM}$ ln consideration of the simulation results, an adequate punch and die was designed and made for the cutting unit. In order to verify the performance of cutting process, the roughness of cutting section of the part was measured and was satisfied in requirement.

• International journal of advanced smart convergence
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• 제13권1호
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• pp.99-107
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• 2024

In AI image generation tools, most general users must use an effective prompt to craft queries or statements to elicit the desired response (image, result) from the AI model. But we are software engineers who focus on software processes. At the process's early stage, we use informal and formal requirement specifications. At this time, we adapt the natural language approach into requirement engineering and toon engineering. Most Generative AI tools do not produce the same image in the same query. The reason is that the same data asset is not used for the same query. To solve this problem, we intend to use informal requirement engineering and linguistics to create a toon. Therefore, we propose a sequence diagram and image generation mechanism by analyzing and applying key objects and attributes as an informal natural language requirement analysis. Identify morpheme and semantic roles by analyzing natural language through linguistic methods. Based on the analysis results, a sequence diagram and an image are generated through the diagram. We expect consistent image generation using the same image element asset through the proposed mechanism.

• 정보처리학회논문지D
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• 제13D권7호
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• pp.909-922
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• 2006

프로덕트 라인 공학(Product Line Engineering)에서 핵심자산은 제품계열에 속하는 패밀리 멤버들이 어플리케이션을 만드는데 기초가 되는 모든 자산을 포함한다. 핵심자산 가운데 하나인 요구사항은 전통적인 시스템 개발에서와 마찬가지로 모든 핵심자산의 기초가 되는 부분이며, 다른 핵심자산의 공통성과 가변성(Commonality and Variability : C&V)을 결정하는 중요한 요소가 된다. 하지만 요구사항은 도메인 전문가 혹은 개발자가 경험에 기반하여 정형적인 프로세스 없이 분석하고 있으며, 동일한 도메인 요구사항임에도 불구하고 요구사항이 재사용 되지 않고 있다. 따라서 도메인 요구사항은 객관적인 방법을 통해 공통성과 가변성을 도출하고 이를 재사용 할 수 있는 프로세스가 정립되어야 할 필요가 있다. 이에 본 논문에서는 도메인 요구사항을 객관적인 근거에 따라 분석할 수 있는 4가지 활동 즉 도메인 범위 결정, 도메인 요구사항 추출 및 일반화, 도메인 요구사항 분석 및 모델링, 도메인 요구사항 변경 관리 활동 및 그에 따른 세부적인 활동을 제시하였다. 이를 요구사항 관리에 적용할 경우 분석한 도메인 요구사항과 관련된 아키텍처 혹은 컴포넌트의 재사용성 증대를 통하여 제품 개발기간과 비용을 줄이며 생산성을 향상시키는 등의 장점을 가져올 수 있을 것으로 기대한다. 또한 프로덕트 라인 공학에서 핵심자산의 기초가 되는 요구사항을 체계적으로 분석하고 관리함으로써, 요구사항을 기반으로 산출되는 다양한 산출물의 품질을 높일 수 있을 것으로 기대한다.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.426-432
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• 2013

The construction industry consists of various and massive architectural information as an architectural process includes a variety of design stages with cooperation of many disciplines. Particularly, architectural information is generated and managed through the life cycle of a building, from conceptual design stage to the construction and maintenance. A Building Information Model (BIM) serves as a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle from inception onward. BIM technology accomplished quantitative development being utilized in various disciplines. However, it is necessary to develop environment and requirement for qualitative improvement of BIM based project. Particularly, requirement is very important for architectural design evaluations. The purpose of this study is to develop and apply of quality control requirement for improving the quality of architectural design in open BIM environments. To achieve this purpose, the authors have investigated case study for open BIM data quality control (software, guideline and application case) and classified quality control targets according to physical/logical quality and data quality. In addition, the authors have defined open BIM based quality control process and developed quality control requirements. Finally, the authors have developed rule based quality check system using requirements for efficient quality control based on open BIM.

• 시스템엔지니어링학술지
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• 제9권1호
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• pp.47-53
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• 2013

The object of this study is to define systematically for outputs of Verification Process among the system life cycle process based on ISO/IEC 15288 for power supply system, which is one of the importance sub-systems to configure the LRT system. Furthermore, to prevent various problem in advance that can occur in the Transition LRT's power supply to be completed Integration. For this purpose, traceability of verification requirement and outputs. should be managed to use verification for system requirement and data processing tool. by system engineering techniques of system life cycle process based on ISO/IEC 15288 to LRT system.

• 정보보호학회논문지
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• 제14권3호
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• pp.85-100
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• 2004

모든 정보시스템은 보안기능이 강화된 정보보호시스템이라 할 수 있으며, 정보보호시스템의 품질을 높이기 위해서는 초기 요구사항 분석 단계에서 보안요구사항을 정형적이며 일관적으로 분석 및 명세하여야 한다. 본 논문에서는 UML의 Use Case 모델을 확장한 Misuse Case 모델을 이용하여 보안요구사항을 분석 및 명세하는 모델과 프로세스를 제시하였으며, 도출된 보안기능요구사항들을 제품화한 비용효과적인 보안제품 선정 알고리즘을 제시하였다. 제시한 모델 및 프로세스를 통해 개발된 정보보호시스템의 품질을 제고할 수 있을 것이다

• 시스템엔지니어링학술지
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• 제9권1호
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• pp.1-11
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• 2013

In this study, unattended Light Rail Transit System (K-AGT) is a general-purpose standards safety requirements of IEC 62267 based System Engineering Process (SEP) was used. Functional analysis and physical architecting for each requirements through the vehicle was classified into sub-systems, design was analyzed in terms of SE. The analysis of the proposed system engineering process, unattended train operation (UTO), driverless train operation(DTO) design of the safety measures to be used as the basis is studied.

• 한국신뢰성학회지:신뢰성응용연구
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• 제2권2호
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• pp.85-97
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• 2002

In this paper, partially repairable concurrent spare parts requirement determination problem of newly procured equipment systems is considered. “partially repairable” means that a portion of damaged parts can be recover their function and reused after repairs. A mathematical model is derived for making an CSP requirement determination subject to the constraint of satisfying any given operational availability limitation. We assume that the failure of a part follows a Poisson process and the repair time has an exponential distribution. Using the generalized Lagrange multipliers method, the solution procedure is derived.

• 시스템엔지니어링워크숍
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• 통권1호
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• pp.32-39
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• 2003

This work describes a study of analysis and evaluation activities applied systems engineering approach. It is presented technique of derivation and management requirement. A scheme of the defence project analysis and evaluation using a systems engineering process is described.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.975-977
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• 2004

According to thin and light form-factor and additional function of today's electronic devices, it is required to decrease the pattern pitch of FPC. The high density demand is more and more important trend especially, for small size LCD module. Based on this requirement, the manufacturing process is advancing from subtractive method to super subtractive method.