Korea's Corona 19(COVID-19) quarantine, referred to as 'K-Quarantine', is a globally recognized quarantine system that has achieved both conflicting goals: health and economy. The quarantine system represented by 3T(Test-Trace-Treat) is not a method of blocking an area, but a method of screening and treating infected and non-infected persons. The screening center, one of the key elements of this screening treatment system, has evolved to suit the timing and situation of COVID-19, and has succeeded in initial response by conducting large-scale tests quickly and safely. By analyzing the evolution of screening centers that produced such significant results from a problem-solving point of view, it proved its meaning as a practical success case of creative problem- solving. In addition, the usefulness of TRIZ (Russian abbreviation of Theory of Solving Inventive Problem), a creative problem- solving theory, was confirmed through an analysis of actual verified cases of COVID-19 response. TRIZ is a problem-solving theory created by analyzing the regularity of invention patents, and is widely used not only in the technical field but also in the non-technical fields such as design, management, and education. The results of this study are expected to provide useful meaning and practical examples to researchers interested in system analysis and TRIZ application from a problem-solving perspective.

In this study, the TRIZ methods were used to solve the main cause of the ink splashing phenomenon in a tattoo machine. To solve the ink splashing phenomenon that occurs when a tattoo machine is operated, a flow analysis of the needle unit was performed using ANSYS CFX V14.5. From the flow analysis result, it was confirmed that the ink splashing phenomenon of the tattoo machine can be supplemented by the hole leading to the outside to the needle unit of a tattoo machine. In order to diagnose the natural frequencies of the tattoo machine and the resonance phenomenon caused by the excitation of the motor, the natural frequency analysis was performed using the Abaqus/standard frequency analysis technique. From the results of the natural vibration analysis, it was confirmed that no resonance occurred. It is expected that it will contribute to improve the efficiency of the semi permanent cosmetic device with removable ink cartridge.

The global small and mid-sized display market is changing from thin film transistor-liquid crystal display to organic light emitting diode (OLED). Reflecting these market conditions, the domestic and overseas display panel industry is making great effort to innovate OLED technology and incease productivity. However, current OLED production technology has not been able to satisfy the quality requirement levels by customers, as the market demand for OLED is becoming more and more diversified. In addition, as OLED panel production technology levels to satisfy customers’ requirement become higher, product quality problems are persistently generated in OLED deposition process. These problems not only decrease the production yield but also cause a second problem of deteriorating productivity. Based on these observations, in this study, we suggest TRIZ-based improvement of defects caused by glass pixel position deformation, which is one of quality deterioration problems in small and medium OLED deposition process. Specifically, we derive various factors affecting the glass pixel position shift by using cause and effect diagram and identify radical reasons by using XY-matrix. As a result, it is confirmed that glass heat distortion due to the high temperature of the OLED deposition process is the most influential factor in the glass pixel position shift. In order to solve the identified factors, we analyzed the cause and mechanism of glass thermal deformation. We suggest an efficient method to minimize glass thermal deformation by applying the improvement plan of facilities using contradiction matrix in TRIZ. We show that the suggested method can decrease the glass temperature change by about 23% through an experiment.

Recently, corporate environment is faced with uncertainty that did not suffer in the past. In addition, as the supply chain was expanded and lengthened, the flow of information and material was complicated. Increase in complexity which amplifies the variability of the individual steps in supply chains further adds to the uncertainty. The bullwhip effect that refers the phenomenon where order variability increases as the orders move upstream in the supply chain became serious. The bullwhip effect is more and more important especially for the enterprise in the supply chain. So, there are many studies now since it was observed about 100 years ago. The aim of this paper is to analyze how to solve the bullwhip effect by using TRIZ (Teoriya Resheniya Izobretatelskikh Zadach). TRIZ is one of the most famous tools for creative solving that applied in many fields ranging from management as well as engineering. Among problems, the dilemma needs creative solutions that require handling the contradictions inherent in that. Among various kinds of problem solving techniques, TRIZ provides the concept of physical contradiction as a common problem solving principle. This study provides a simple process of solving problem explains a case of solving problem in the management field and shows the availability of theory in the inventory control. In accordance with the proposed solving process, the paper analyzes the bullwhip effect by applying the TRIZ tools and then identifies the solution directions. Next, the current studies are classified by the above analysis and important managerial concepts are proposed. Lastly, directions for future research on this area are suggested.

현재 기업에서는 제품인증과 경영시스템인증의 신뢰성 확보가 중요한 과제이다. 이는 제품개발 중심에서 제품 및 프로세스의 통합 개발 중심으로 연구의 필요성을 제시 해주고 있다. 따라서, 정적인 제품인증에서 동적인 시스템인증의 필요성이 대두되면서 신뢰성경영시스템(DMS; Dependability Management System; IEC60300)이 요구되어진다. 제품개발의 프로세스에서 발생되는 신뢰성 문제점들을 해결하기 위하여 트리즈(TRIZ ; Theory of Inventive Problem Solving) 기법을 활용하였다. 본 연구에서는 창의적 문제해결 방법론인 트리즈기법을 활용하여 신뢰성경영시스템에서 제품 및 프로세스 통합개발(IPPD; Integrated Product and Process Development)을 하고자 한다. 결과적으로 창의적 신뢰성경영시스템(CDMS; Creative Dependability Management System)을 제품 및 프로세스 통합개발 모델로 제시한다.