• Proceedings of the Korea Society for Simulation Conference
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• 2001.10a
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• pp.123-130
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• 2001

At present, the virtual prototyping technology for complex product is one of the research and application hotspots in current simulation technology. In authors viewpoint, the virtual prototype development for complex product has become a systematic engineering, which can be called the complex product virtual prototyping engineering (CPVPE). In this paper, the architecture, key technologies and its supporting environment of CPVPE are primary discussed firstly. Combined with the research project and primary practice undertaken by the authors, a typical application demonstration of the aerospace complex product virtual prototyping engineering (including mechanism, dynamics, software and control system) is also introduced based on the virtual prototype supporting environment developed by the authors. Finally, some further research works on CPVPE are also presented in this paper.

• The Journal of Society for e-Business Studies
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• v.5 no.1
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• pp.1-18
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• 2000

As the networks (i.e., intranet and internet) proliferate all over the world, it is inevitable to move some (or all) of the enterprise activities into virtual spaces. Differently from business data, product data have complex semantics and thus are not properly exchanged among different application programs. Even though some neutral formats of product data have been developed by standard organizations, translating them among various application programs still needs the comprehensive understanding of the complex semantics. Recently, it is widely recognized that capturing more knowledge is the next step In overcome the current difficulties on sharing product data. In this paper, we present Web-based knowledge management that facilitates seamless sharing of product data among various application programs in virtual enterprises. Three types of knowledge are managed by the knowledge management system - metadata, ontology, and mapping. In this environment, we consider both business applications (e.g., ERP, SCM, and EDI System) and engineering applications (e.g., CAD and CAM system).

• Journal of Korea Technology Innovation Society
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• v.1 no.3
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• pp.313-325
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• 1998

Government-Supported Research Institutes(GSRI) have done complex product(CP) development with national needs. The products to be developed have very limited demand. The most important things at CP development are technology innovation through knowledge creation and acquisition. Then, this paper suggests the technology innovation system for CP development. In CP development like satellite, government must do strategic management at national level and technology management at program level. Two managements are tools to achieve the strategic goals. The key points in CP are integration and interface among subsystems and person. From these factors and innovation system, R&D planning and practice are based on sharing and creation of knowledge. CP development projects ought to overlap and parallel for sustainable acquisition and creation of knowledge.

• Proceedings of the Technology Innovation Conference
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• 2009.02a
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• pp.57-87
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• 2009

본 연구는 조선산업을 선도하고 있는 우리나라 D조선사와 S 조선사의 CAD system 부문에 있어 사용자 혁신 내용과 과정, 그리고 사용자 혁신이 기업의 경쟁 우위에 미치는 영향을 분석하고 complex product system에서의 사용자 혁신의 함의점과 CAD platform 자체의 진화에 따른 사용자 혁신의 한계를 조망한다. 사례 연구를 통해 본 연구가 발견한 결과는 다음과 같다. 1) 조선기업의 설계 및 제조 practice 및 관련 IT system 의 다양성과 특이성으로 인해 CAD system vendor 보다는 CAD system user 에 의한 application module 혁신이 cost와 benefit 차원에서 더 경제적이며, 2) 조선업체는 application module 혁신을 위해 사용자 need를 알고 있는 설계자와 CAD system 을 이해하고 있는 system 기술자로 구성된 팀 혹은 CoP를 통해 자체 개발하고 있고, 일부는 제3자 CAD application 업체에 위탁개발하기도 하며, 3) 조선과 같이 매우 복잡한 부품과 설계 및 제조 프로세스로 구성된 complex product system에서의 사용자 혁신은 자신의 암묵적인 노하우를 외부로 노출하지 않는 동시에 자사의 설계에서부터 제조, 구매, engineering, 그리고 경영 프로세스에 이르기까지 하나의 통합된 system 을 가능하게 함으로써 일정의 단축과 오작의 감소로 인한 품질과 원가경쟁력에 큰 기여를 하는 것으로 나타났으나, 4) 사용자 혁신이 일어나고 있는 CAD platform 자체가 대부분 외국계 전문업체 vendor 에 의해 지배되고 있고, CAD 기술의 진화(Solid 3D 등)로 인해 platform 자체가 변화함에 따라 그 위에서 진행되고 있는 application module 의 sustainability 가 위협받고 있다. 이러한 결과를 바탕으로 본 연구는 정부의 기술혁신 지원 정책과 기업의 혁신 전략에 대한 시사점을 제안하고 있다.

• Journal of Korea Technology Innovation Society
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• v.2 no.2
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• pp.275-289
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• 1999

This study aims at investigating the stylized facts of the complex system products innovation in Korea. It reviewed the preceeding studies on the innovation patterns of complex system products and selected the issues to be examined in investigating Korean case. In addition, the stylized facts of innovation patterns of Korean complex system products were suggested. The peculiar characteristics of Korean cases are as follows: Korea has succeeded in integrating foreign technologies and components into commercial complex system products and in substituting the foreign system products in the domestic market. However, it faces a great difficulty in upgrading the products to the next generation. It lacks capabilities which facilitate the evolution of system products competing in the world market.

• Korean Journal of Computational Design and Engineering
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• v.6 no.4
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• pp.229-235
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• 2001

As the networks (i.e., intranet and internet) proliferate all over the world, it is inevitable to move some (or all) of the enterprise activities into virtual spaces. Differently from business data, product data have complex semantics and thus are not properly exchanged among different application programs. Even though some neutral formats of product data have been developed by standard organizations, exchanging them among various application programs still needs the comprehensive understanding of the complex semantics. Recently, it is widely recognized that capturing more knowledge is the next step to overcome the current difficulties on sharing product data. In this paper, we utilize the ontology concept in order to facilitate information search far product data in the internet environment. A prototype of search system implemented using the ontology for automobile product data is presented.

• Korean Journal of Computational Design and Engineering
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• v.1 no.3
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• pp.203-214
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• 1996

An information sharing system, namely World Design View, is developed for browsing product design data on the World Wide Web environment. For the last few years information sharing has been rapidly emerging as an important research issue in the areas of concurrent engineering, product data management, virtual manufacturing, and so on. Since we are mainly concerned with product development, the key information that needs be communicated and shared is product data. The developed system puts the major advantages of STEP, OODB, and VRML together. The STEP standard provides a consistent data exchange format and application interfaces among different CAD/CAM systems. OODB is efficient and effective in dealing with complex data structures often found in engineering applications. Virtual worlds for 3-D product models can be created by VRML which is networked via the global Internet and hyperlinked with WWW. The World Design View system can support for members of virtual design teams, possibly distributed all over the world, to share 3-D shape information quickly and easily.

• Industrial Engineering and Management Systems
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• v.10 no.3
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• pp.232-237
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• 2011

Design for Six Sigma (DFSS) has been implemented in many companies to enhance their business performance and customer satisfaction. However, DFSS has not been widely applied to the aircraft industry which operates large, complex development programs. In this paper, the characteristics of an aeronautical product development program are analyzed to figure out the limitations of current DFSS methodology and the prerequisite to deployment of DFSS at the program level is suggested.

• Journal of Engineering Education Research
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• v.22 no.4
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• pp.61-70
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• 2019

As product development process becomes complex, it becomes more important for engineering students to experience collaborative product development. Especially the collaboration experience based on Product Data Management (PDM) systems is useful, since participants are likely to use the same environment for their professional product development. However, instructors have difficulties to evaluate contribution of each participant to their projects during the practices, since it is hard to trace personal activities for collaborative design processes. To solve this problem, this study suggests a data-driven objective method that analyses product data accumulated in PDM databases to evaluate numerically calculated contributions of participants to their class projects. As a result, the quantitative measures provided by the data-driven analysis with qualitative measures for project results can improve the fairness and quality of evaluation of contributions of participants to collaborative projects. This study implemented the proposed evaluation method with an information system and discussed the result of the application of the system to product development practices.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.39 no.3
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• pp.139-146
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• 2016

This study proposes a methodology to analyse social networks among participating design engineers during product development projects. The proposed methodology enables product development managers or the participating design engineers to make a proper decision on product development considering the performance of participating design engineers. It considers a product development environment where an integrated product data management (PDM) system manages the product development data and associated product development processes consistently in its database, and all the design engineers share the product development data in the PDM database for their activities in the product development project. It provides a novel approach to build social networks among design engineers from an operational product development data in the PDM database without surveys or monitoring participating engineers. It automatically generates social networks among the design engineers from the product data and relationships specified by the participants during the design activities. It allows analysts to gather operational data for their analysis without additional efforts for understanding complex and unstructured product development processes. This study also provides a set of measures to evaluate the social networks. It will show the role and efficiency of each design engineers in the social network. To show the feasibility of the approach, it suggests an architecture of social network analysis (SNA) system and implemented it with a research-purpose PDM system and R, a statistical software system. A product configuration management process with synthetical example data is applied to the SNA system and it shows that the approach enables analysts to evaluate current position of design engineers in their social networks.