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Goal-formation Process in Fractal Manufacturing Systems
Ryu, Kwangyeol,Jung, Mooyoung 한국경영과학회 2003 한국경영과학회 학술대회논문집 Vol.- No.1
Decomposition of tasks in the ordinary manufacturing systems is usually based on the predefined goal of the system. To achieve the high-level-goals (e.g., factory goal or company goal), several sub-goals should be achieved in advance. However, goals can change along with the current status of the system and the external environmental situations. Thus, a manufacturing system should support the goal-formations which can be beatable these changes for efficient and effective operations. Therefore, it is necessary to develop a systematic methodology for the goal-formations in a manufacturing system. Especially, the formation and/or change of goals in real-time should be possible for distributed and dynamic systems including the fractal manufacturing system (FrMS). In this paper, a threefold methodology is proposed for the goal-formation process (GFP) in the FrMS; 1) a goal-generating process (GGP) to make and propagate fuzzy goals, 2) a goal-harmonizing process (GHP) to eliminate or reduce conflicts and interferences of goals by using a mobile agent-based negotiation scheme, and 3) a goal-balancing process (GBP) to make a compromise between goals by using quantifiable indicators of the manufacturing system.
류광열(Kwangyeol Ryu),김보현(Bohyun Kim),최헌종(Honzong Choi) 대한산업공학회 2010 산업공학 Vol.23 No.2
Customer needs for final products are very unpredictable because product specifications and technologies are being improved very quickly thereby their requirement level is also elevated correspondingly. In order to survive and to enhance competitiveness in the global market, many manufacturing companies are trying to find a breakthrough from collaborization. Even though they want to collaborate with others, however, they do not exactly know what kind of system they have to develop or which technology they have to use. In this paper, therefore, we first investigate status and trend of information systems and infrastructure that are essential for collaboration. We then clearly describe definition and classification of collaboration with various point of views considering collaboration pattern, timing condition of collaborative activities, organizational structure, etc. With web-based collaboration systems already developed by i-Manufacturing (Korean-style Manufacturing Innovation) project, led by Korean government from 2004, we introduce main functions and analyze collaboration types of each system. Strategically important technologies for supporting collaboration will also be illustrated by reorganizing collaborization technologies after evaluating them with respect to emergency and importance of each technology. We hope this research will provide a guideline on collaboration especially for small and medium sized manufacturing companies.
류광열,남성호,최영재,이석우,최헌종 한국공작기계학회 2007 한국공작기계학회 추계학술대회논문집 Vol.2007 No.-
최근 국내 제조업체들의 중국진출 가속화 및 지속적으로 진행되어온 중소기업의 구조적ㆍ기술적 취약성 등으로 인해 특히 국내 중소 제조업체는 많은 어려움을 겪고 있다. 이러한 상황을 극복하고 기업간 기술협업 기반의 제조경쟁력 강화를 위하여 현재 i매뉴팩처링(한국형 제조혁신)사업이 추진 중에 있다. 본 논문에서는 i매뉴팩처링 사업을 통해 구축된 다양한 협업모델 가운데 성공적인 평기를 받고 있는, 가상기업 구성을 통한 중소기업 상생모델인 사출금형생산 협업허브 및 이에 대한 확대사례를 소개하고자 한다. 또한 본 논문에서는 기업 컨소시엄의 특성에 맞게 구축된 협업모델에 대해 기능강화를 통한 기업적용으로의 활용성 검증을 마친 기구축 협업허브를 신규 기업군을 대상으로 적용하는 과정에 대해 설명하며, 이러한 협업네트워크의 확산을 통해 기업경쟁력 강화에 어떠한 영향을 미칠 수 있는지에 대해서도 고찰해 보기로 한다.
Sangil Lee,Kwangyeol Ryu 대한산업공학회 2011 대한산업공학회 추계학술대회논문집 Vol.2011 No.11
Nowadays, many manufacturing companies try to reinforce their competitiveness or find a breakthrough by considering collaboration. Therefore, various kinds of systems and solutions have been developed to support manufacturers by providing useful services for collaborative production. When a manufacturer is being used legacy systems such as PDM (Product Data Management), ERP (Enterprise Resource Planning), PLM (Product Lifecycle Management), etc. but he wants to adopt a new manufacturing collaboration system or service, system customization including modification and integration becomes complicated and time consuming. However, it is known that a single system can hardly satisfy several companies simultaneously; hence system customization becomes indispensable. Therefore, this paper proposes a framework for providing reconfigurable manufacturing services via Manufacturing collaboration systems. To support reconfigurable manufacturing services, the framework applies four distinctive methodologies complementarily; 1) fuzzy-ANP method to find out favorite services 2) data mining technique to classify favorite services according to characteristic of individual user, 3) process mining technique to investigate validity and efficiency of processes defined in the system by analyzing log data. The application of the proposed framework will support users to customize this system more easily and efficiently by providing an autonomous and comprehensive method of reconfiguration.