• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2006년도 춘계종합학술대회
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• pp.931-934
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• 2006

최근 농산물의 안전성에 대한 문제가 지속적으로 발생함에 따라 문제가 생긴 농산물을 빠르게 역추적하여 원인 분석과 유통 금지를 가능하게 하는 농산물이력추적관리 시스템의 필요성이 요구되고 있다. 따라서 이 시스템은 유통 데이터의 기록이 중요한데 이를 위하여 무선 주파수로 원격에서 태그를 인식하는 RFID(Radio Frequency Identification) 기술이 효과적으로 이용될 수 있다. 그러나 RFID 기술은 최근 주목받고 있는 기술이기 때문에 RFID 태그와 유통 데이터를 처리하는 시스템이 미미한 상황이다. 이에 본 논문에서는 농산물이력추적관리 기준에 기반하여 기록되어 있는 RFID 태그의 데이터와 이력정보를 분석 및 관리함으로서 이력추적을 가능하게 하는 RFID 처리 시스템을 설계 및 구현하였다.

• 한국산학기술학회논문지
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• 제20권3호
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• pp.91-99
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• 2019

함정은 일반성능, 특수성능, 탑재장비 성능과 관련된 수많은 요구사항이 있으며, 장기간에 걸친 설계 및 건조기간 동안 요구사항은 각 시스템에 반영되고 구현되어야 한다. 요구사항은 설계기간 동안 작성되는 도면, 보고서, 제안요청서, 사양서 등 다양한 문서들을 통해 구체화 된다. 그러나 함정과 같은 복합시스템의 경우 이런 산출물을 통해 요구사항 추적성을 유지하며 요구사항을 관리하는 것에 많은 어려움이 따른다. 함정의 설계 및 건조기술은 오랜 역사 속에 발전되어 왔기 때문에 기존의 문서기반 설계 방식에 익숙하지만, 각종 설계 산출물과 요구사항, 그리고 시스템의 기능, 물리 아키텍처 간 추적성 관리는 어려움이 있다. 함정의 기본설계는 함정 제원 및 성능, 탑재장비 선정 및 배치, 연동 등을 확정하는 중요한 단계이며 시스템 아키텍처 설계 구현을 위한 구체적인 적용 방법 연구를 통해 변화가 요구된다. 따라서 함정 기본설계 단계에 적합한 요구사항 설계 적용을 위한 시스템 아키텍처 설계 방법 연구가 필요하다. 본 논문에서는 요구사항으로 부터 시스템 아키텍처 설계를 수행하고 SE 기반 기술검토 프로세스를 통해 확인하는 방법을 연구하였다. 잠수함 시스템 아키텍처 설계를 위해 요구사항 분석, 아키텍처 설계, 설계 실행 및 통합의 각 단계별 세부 수행사항과 내용을 제시하였다. 이를 통해 효과적인 시스템 요구사항 개발 및 아키텍처 설계가 가능하였으며, 단계별 추적성 관리, 요구사항의 확인 측면에서 효과적임을 확인하였다. 향후 잠수함을 비롯한 다양한 함정에 제시한 프로세스 적용이 가능할 것으로 판단된다.

• 대한안전경영과학회지
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• 제16권1호
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• pp.69-77
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• 2014

The environment and requirements of modern war fields have been affected and thus changed by a variety of issues. To this end, the development of safety-critical weapon systems frequently need to meet those changes even in the operational phase. The necessity of the changes may be due to the preparation for mass-production or the request originated from the user military forces. To meet such a need can be even tougher in the development of safety-critical weapon systems since the integration of the requirements for both systems design and systems safety would make it troublesome. To handel the matter in this paper, utilization of architecture DB is proposed. Specifically, the situation in demand has first been analyzed and then a problem-solving process to accommodate the design changes has been constructed. In doing so, the concept of the aforementioned integration is particularly focused on the functional architecture, which could be a core concept of our approach to solving the problem. The result of a case study demonstrating the method studied using a computer-aided systems engineering tool is also presented.

• 한국유기농업학회지
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• 제17권2호
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• pp.135-150
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• 2009

This paper was to use choice experiments in the analysis of consumer choice behavior and preferences for five different attributes(the origin of rice, a quality certificate, a quality control, a traceability system, the price of rice) in Cheongju City. Completed surveys yielded 712 responses which were analyzed using the conditional logit model to analyze the marginal willingness to pay of the four attributes(the origin of rice, a quality certificate, a quality control and a traceability system) per household and estimated the marginal willingness to pay of the set of feasible options. The result of this study can be used as a guide for the rice industry in the design of possible labeling schemes.

• 조명전기설비학회논문지
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• 제23권11호
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• pp.44-51
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• 2009

A variety of Urban Rail Transit (URT) systems have been operating and they have different technology bases, causing a lot of difficulties in taking measures against trouble, training, upgrading, interoperability and so on. As such, a standardization project has been carried out to solve the problems by setting up the national standards for URT systems. A common database was built to provide the integrated engineering environment to the community of URT project. This paper discusses the design of the database and how it can be utilized in the successful promotion of the project. The products of the projects are stored into the database with traceability management to be referred to by other new URT projects for reusing and sharing the acquired knowledge through cross organizations.

• International Journal of CAD/CAM
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• 제11권1호
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• pp.1-10
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• 2011

Product lifecycle management (PLM) is a new business strategy for enterprise's product R&D. A PLM system holds and maintaining the integrity of the product data produced throughout its entire lifecycle. There is, therefore, a need to build a safe and effective product data model to support PLM system. The paper proposes a domain-based product data model for PLM. The domain modeling method is introduced, including the domain concept and its defining standard along the product evolution process. The product data model in every domain is explained, and the mapping rules among these models are discussed. Mapped successively among these models, product data can be successfully realized the dynamic evolution and the historical traceability in PLM system.

• 산업공학
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• 제19권4호
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• pp.333-341
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• 2006

RFID (Radio Frequency Identification) is a technology that can input identification information to microchip and make goods, animals, persons recognized, chased, and managed using radio frequency, and is founded on the core technology of ubiquitous environment of the future. In this paper, we propose a RFID integrated system designed to manage the lifecycle of an individual product efficiently. The proposed system can enable traceability and visibility of items through their entire life by integrating distribution and banking information on the basis of EPCglobal Network. It may provide the infra of Digital Manufacturing and RTE (Real Time Enterprise) and effective information sharing structure with existing legacy system (ERP, CRM, SCM) by real time.

• Nuclear Engineering and Technology
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• 제48권2호
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• pp.404-418
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• 2016

This paper presents a documentation and development method to facilitate the certification of scientific computing software used in the safety analysis of nuclear facilities. To study the problems faced during quality assurance and certification activities, a case study was performed on legacy software used for thermal analysis of a fuelpin in a nuclear reactor. Although no errors were uncovered in the code, 27 issues of incompleteness and inconsistency were found with the documentation. This work proposes that software documentation follow a rational process, which includes a software requirements specification following a template that is reusable, maintainable, and understandable. To develop the design and implementation, this paper suggests literate programming as an alternative to traditional structured programming. Literate programming allows for documenting of numerical algorithms and code together in what is termed the literate programmer's manual. This manual is developed with explicit traceability to the software requirements specification. The traceability between the theory, numerical algorithms, and implementation facilitates achieving completeness and consistency, as well as simplifies the process of verification and the associated certification.

• 한국철도학회:학술대회논문집
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• 한국철도학회 1999년도 추계학술대회 논문집
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• pp.121-129
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• 1999

This paper will describe the design of database for system engineering of High Speed Railway Systems, focusing on tile ability to capture a full thread of traceability, from tile inception of a system requirement, to the test results that validate that the designed system meets criteria defined by the requirement. The database includes data models for requirement, function, component, work, work process, resource, etc.. These data models are utilized for tile efficient management of data related system design, development work, and validation.

• 시스템엔지니어링학술지
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• 제15권2호
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• pp.57-65
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• 2019

The weapon system applies the rule that the system engineering procedure must be applied at the acquisition stage. Naval ships, which are one of the important naval weapon systems, take a long period of time to acquire, and the leadership must be commissioned. Therefore, in order to acquire a naval ship, high risk management is necessary, and it is necessary to promote business success through effective application of system engineering which is a scientific management method. However, in the case of naval ships, there are no specific procedures and methods for applying the system engineering. Therefore, research on application method of system engineering which can be easily used by person in charge is necessary. This should have a simple approach to ensure effective business performance by systematically refining and simplifying existing works. QFD (Quality Function Deployment) is a way to improve product satisfaction, impress customers, reduce defective products, reduce design errors, and reduce costs. This systematically develops these mutual relationships by converting the needs of customers into quality characteristics of products and defining them as the design quality of products considering the functions, quality, and process elements of parts. The purpose of this research is to present concrete methodology at the practical level using QFD in a way to ensure traceability of requirements which is an important element of system engineering.