• 한국CDE학회논문집
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• 제17권4호
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• pp.234-245
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• 2012

This paper proposes a multi-level product modeling framework for long-term lifecycle products. The framework can help engineers to define product models and relate them to physical instances. The framework is defined in three levels; data, design model, modeling language. The data level represents real-world products, The model level describes design models of real-world products. The modeling language level defines concepts and relationships to describe product design models. The concepts and relationships in the modeling language level enable engineers to express the semantics of product models in an engineering-friendly way. The interactions between these three levels are explained to show how the framework can manage long-term lifecycle product information. A prototype system is provided for further understanding of the framework.

• 한국CDE학회논문집
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• 제11권2호
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• pp.88-96
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• 2006

This paper introduces an approach to ontology-based framework for knowledge management in a product development domain. The participants in a product life cycle want to share the product knowledge without any heterogeneity. However, previous knowledge management systems do not have any conceptual specifications of their knowledge. We suggest the three levels of knowledge framework. First level is an axiom, which specifies the semantics of concepts and relations. Second level is a product development knowledge map. It defines the common domain knowledge which domain experts agree with. Third level is a specialized knowledge for domain, which includes three knowledge types; expert knowledge, engineering function and data-analysis-based knowledge. We propose an ontology-based knowledge framework based on the three levels of knowledge. The framework has a uniform representation; first order logic to increase integrity of the framework. We implement the framework using prolog and test example queries to show the effectiveness of the framework.

• International Journal of CAD/CAM
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• 제5권1호
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• pp.99-109
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• 2005

This paper introduces an approach to an ontology-based multi-level knowledge framework for a knowledge management system for discrete-product development. Participants in a product life cycle want to share comprehensive product knowledge without any ambiguity and heterogeneity. However, previous knowledge management approaches are limited in providing those aspects: therefore, we suggest an ontology-based multi-level knowledge framework (OBMKF). The bottom level, the axiom, specifies the semantics of concepts and relations of knowledge so ambiguity can be alleviated. The middle level is a product development knowledge map; it defines the concepts and the relations of the product domain knowledge and guides the engineer to process their engineering decisions. The middle level is then classified further into more detailed levels, such as generic product level, specific product level, product version level, and manufactured item level, according to the various viewpoints. The top level is specialized knowledge for a specific domain that gives the solution of a specific task or problem. It is classified into three knowledge types: expert knowledge, engineering function knowledge, and data-analysis-based knowledge. This proposed framework is based on ontology to accommodate a comprehensive range of knowledge and is represented with first-order logic to maintain a uniform representation.

• 품질경영학회지
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• 제52권3호
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• pp.495-508
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• 2024

Purpose: The purpose of this study was to propose a framework for quality level diagnosis of military supplies, which consists of 7 steps for developing questionnaires and suggesting improvement guidelines. Methods: We analyze the required functions of the equipment under investigation, classify the main components, review quality characteristics, develop a quality level checklist through the first and second stages of quality function deployment, and evaluate and analyze the results of the quality level survey applied to this checklist. Results: We first compared and analyzed case studies of domestic and international military and civilian quality level surveys and proposed a framework for diagnosing the quality levels of military supplies. Additionally, we applied the proposed quality level diagnosis framework to a specific weapon system to analyze its quality characteristics and identify improvement directions, thereby verifying the applicability of the proposed frame- work for diagnosing the quality levels of military supplies. Conclusion: The results of this study, which include the application of the proposed diagnostic framework for quality investigation and analysis, can be used to understand the satisfaction with the military supplies currently in operation. This will enable the continuous assurance of quality related to the functions and performance required by the military weapon systems.

• 대한수학교육학회지:수학교육학연구
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• 제14권4호
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• pp.347-366
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• 2004

본 연구는 최근 국제적인 수학 학습 평가의 틀을 제공하고 있는 Jan do Lange를 중심으로 RME의 수학 학습 평가틀을 살펴봄으로써, 제 7차 교육과정의 내실화를 위한 수학 학습 평가의 방향을 제안하는 데 그 목적이 있다. 이러한 목적을 달성하기 위하여 RME의 철학과 Jan de Lange의 수학 학습 평가틀의 구성요소인 평가 목표, 피라미드, 맥락, 평가 유형과 채점 및 피드백에 대해 살펴보고, 이러한 수학 학습 평가틀을 학급수준의 단원평가에 적용하고 있는 미국 교과서의 한 단원에 대한 평가 체계와 문항들을 구체적으로 살펴보았다. 마지막으로 우리나라의 수학 학습 평가를 위한 방향으로 국가수준의 수학 학습 평가틀의 구체화, 국가수준이나 학급수준의 수학 학습 평가틀의 일관성 추구, 교사와 예비교사의 수학 학습 평가 능력 신장의 필요성을 제안하였다.

• 한국정밀공학회지
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• 제23권3호
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• pp.22-31
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• 2006

This paper introduces an approach to an ontology-based knowledge framework for product life cycle management (PLM). Participants in a product life cycle want to share comprehensive product knowledge without any ambiguity and heterogeneity. However, previous knowledge management approaches are limited in providing those aspects. Therefore, we suggest an ontology-based knowledge framework including knowledge maps, axioms and specific knowledge far domain. The bottom level, the axiom, specifies the semantics of concepts and relations of knowledge so that ambiguity of the semantics can be alleviated. The middle level is a product development knowledge map; it defines the concepts and the relations of the product domain common knowledge and guides engineers to process their engineering decisions. The middle level is then classified further into more detailed levels, such as generic product level, specific product level, product version level, and product item level for PLM. The top level is specialized knowledge fer a specific domain that gives the solution of a specific task or problem. It is classified into three knowledge types: expert knowledge, engineering function knowledge, and data-analysis-based knowledge. This proposed framework is based on ontology to accommodate a comprehensive range of unambiguous knowledge for PLM and is represented with first-order logic to maintain a uniform representation.

• 한국과학교육학회지
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• 제38권3호
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• pp.355-367
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• 2018

이 연구의 목적은 학생들의 시스템 사고 수준을 측정하는 문항을 개발하기 위하여 첫째, 문헌 분석을 통해 시스템 사고 수준과 정의를 제시하고 둘째, 시스템 사고 정의와 수준에 근거하여 문항 개발을 위한 Framework을 개발하고 셋째, 시스템 사고 측정을 위한 열린 응답형 검사지를 채점할 수 있는 루브릭을 개발하는 것이다. 이를 위하여 문헌 분석 틀을 적용하여 국외 논문 60편에 대한 문헌 분석을 실시하였으며 분석된 내용을 근거로 시스템 사고 수준과 정의를 제시하였다. 그리고 시스템 사고 수준과 정의에 근거하여 각 수준별 핵심 아이디어와 평가 요소를 포함한 Framework을 개발하였다. 또한 순위선다형 문항 외에 열린 응답형 검사 문항의 채점을 위한 루브릭을 개발하였다. 루브릭은 Hung(2008)이 개발한 시스템 사고 측정을 위한 루브릭에 기반하여 연구팀에서 시스템 사고 수준과 정의에 적합하도록 문항과 위계를 수정하였다. 그리고 각 문항마다 1~5점 척도로 변환이 가능하도록 각 점수에 대한 정의를 제시하였다. 연구팀이 개발한 시스템 사고 수준과 정의, 문항 개발을 위한 Framework, 열린 응답형 검사지 채점을 위한 루브릭에 대하여 과학교육 전문가 7인에게 내용 타당도 검증을 의뢰하였으며 그 결과 CVI가 세 도구에서 모두 .95이상이 확인되었다. 이 연구 결과를 바탕으로 앞으로 학생들의 시스템 사고 수준을 측정할 수 있는 문항을 개발하고 개발된 문항에 대한 구인 타당도 및 준거 타당도 검증을 실시하고자 한다. 나아가 2015 개정 교육과정에서 강조하는 핵심 역량과 관련된 시스템 사고수준의 체계적인 측정을 위한 타당화 연구도 진행하고자 한다.

• 한국산림과학회지
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• 제105권4호
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• pp.472-485
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• 2016

이 연구는 산림유전자원보호구역의 관리효과성 증진을 위하여 보호구역 관리 시스템 수준과 현장 수준에서 활용할 수 있는 관리효과성 평가틀을 개발하기 위해 수행되었다. 시스템 수준의 관리효과성 평가틀 개발을 위해 IUCN WCPA에서 개발한 관리효과성 평가틀과 IUCN, 환경부, 국립공원관리공단이 공동 개발한 보호지역 관리효과성 평가틀을 준용하여 산림유전자원보호구역에 적용할 수 있도록 평가지표들을 수정하고, 일부 지표를 추가하였다. 설문조사를 통해 평가지표(안)에 대한 전문가 32명의 의견을 수렴하여 6개 카테고리, 39개 평가지표, 42개 세부 평가항목으로 구성된 시스템 수준의 관리효과성 평가틀을 개발하였다. 현장 수준의 관리효과성 평가틀은 IUCN, 환경부, 국립공원관리공단이 공동으로 개발한 보호지역 관리효과성 평가틀을 바탕으로 산림유전자원보호구역의 특성들에 대한 평가가 가능하도록 수정하고, 관련된 새로운 평가지표들을 추가하였다. 전문가 설문조사, 산림청 및 지방자치단체들의 산림유전자원보호구역 관리 담당 공무원들을 대상으로 워크숍과 설문조사를 통해 의견을 수렴하여 6개 카테고리, 16개 평가지표, 40개 세부 평가항목으로 구성된 현장 수준의 관리효과성 평가틀을 개발하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.1586-1589
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• 2005

GUMF (Global User Management Framework) that is proposed in this research can be applied to next generation network such as BcN (Broadband convergence Network), it is QoS guaranteed security framework for user that can solve present Internet's security vulnerability. GUMF offers anonymity for user of service and use the user's real-name or ID for management of service and it is technology that can realize secure QoS. GUMF needs management framework, UMS (User Management System), VNC (Virtual Network Controller) etc. UMS consists of root UMS in country dimension and Local UMS in each site dimension. VNC is network security equipment including VPN, QoS and security functions etc., and it achieves the QoSS (Quality of Security Service) and CLS(Communication Level Switching) functions. GUMF can offer safety in bandwidth consumption attacks such as worm propagation and DoS/DDoS, IP spoofing attack, and current most attack such as abusing of private information because it can offer the different QoS guaranteed network according to user's grades. User's grades are divided by 4 levels from Level 0 to Level 3, and user's security service level is decided according to level of the private information. Level 3 users that offer bio-information can receive secure network service that privacy is guaranteed. Therefore, GUMF that is proposed in this research can offer profit model to ISP and NSP, and can be utilized by strategy for secure u-Korea realization.

• 산업경영시스템학회지
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• 제38권1호
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• pp.90-100
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• 2015

This study is conducted to suggest ways to mitigate the mismatch phenomenon between job seekers who want to find right company for themselves and companies looking for appropriate new employees. For this purpose, this study improves the company assessment framework reflecting job seekers interests by using fuzzy analytic hierarchy process. The improved evaluation framework is a three-level hierarchical structure, where there are 4 groups at the top level, 12 factors at the intermediate level and 36 indexes at the bottom level. For the empirical analysis of the applicants preferences based on the improved model, a survey for F-AHP analysis is carried out to university students and then priorities of components in the evaluation model are calculated. Moreover, the differences of priority of the company assessment framework are analyzed for different genders, college years, and major divisions. The results show that job seekers' most concerning factors are wages, stability, working environments, and labor deal, which are ranked highly in this order and the differences in preferences for each type of job seekers (genders, college years, and major divisions) are obvious. The results also show that the male prefers wages to environment, on the other hand female does working environment to wages.