Approximately 40,000 elevators are installed every year in Korea, and they are used as a convenient means of transportation in daily life. However, the continuous increase in elevators has a social problem of increased safety accidents behind the functional aspect of convenience. There is an emerging need to induce preemptive and active elevator safety management by elevator management entities by strengthening the management of poorly managed elevators. Therefore, this study examines domestic research cases related to the evaluation items of the elevator safety quality rating system conducted in previous studies, and develops a statistical model that can examine the effect of elevator maintenance quality as a result of the safety management of the elevator management entity. We review two types: odds ratio analysis and logistic regression analysis models.

As platforms become primary decision making tools, platforms for decision have been introduced to improve quality of decision results. Because, decision platforms applied augmented decision-making process which uses experiences and feedback of users. This process creates a variety of alternatives tailored for users’ abilities and characteristics. However, platform users choose alternatives before considering significant quality factors based on securing decision quality. In real world, platform managers use an algorithm that distorts appropriate alternatives for their commercial benefits. For improving quality of decision-making, preceding researches approach trying to increase rational decision -making ability based on experiences and feedback. In order to overcome bounded rationality, users interact with the machine to approach the optional situation. Differentiated from previous studies, our study focused more on characteristics of users while they use decision platforms. This study investigated the impact of quality factors on decision-making using platforms, the dimensions of systematic factors and user characteristics. Systematic factors such as platform reliability, data quality, and user characteristics such as user abilities and biases were selected, and measuring variables which trust, satisfaction, and loyalty of decision platforms were selected. Based on these quality factors, a structural equation research model was created. A survey was conducted with 391 participants using a 7-point Likert scale. The hypothesis that quality factors affect trust was proved to be valid through path analysis of the structural equation model. The key findings indicate that platform reliability, data quality, user abilities, and biases affect the trust, satisfaction and loyalty. Among the quality factors, group bias of users affects significantly trust of decision platforms. We suggest that quality factors of decision platform consist of experience-based and feedback-based decision-making with the platform's network effect. Through this study, the theories of decision-making are empirically tested and the academic scope of platform-based decision-making has been further developed.

When proliferation activity occurs, states and non-state actors combine various sources of information to gain a better understanding of the situation. The quality of information source, content, and presentation can significantly influence the perception of decision-makers and end users. However, a state’s nuclear or missile activities are almost always classified. Also, states might intentionally reveal information to deter their adversary, threaten their adversary, bolster their prestige in the international community, or a combination of all three. Hence, any revealed information inherently contains some degree of uncertainty regarding its credibility. Lack of credibility makes it difficult for other states or non-state actors to determine how much of the information is accurate and how much is deception. The increase of publicly available information (open-source information) and the development of tools to collect, process, and analyze this information increased the possibilities of using open-source information to cross-check the proliferation claims of states. North Korea is a hermit state that has very little outside interaction. It also has continued to develop and refine its nuclear program. How credible is information released by North Korea? How can scholars/experts compensate for this lack of credibility in information on North Korea’s nuclear activity? This paper seeks to apply a framework on information quality to answer these questions. First, it will briefly explain the factors comprising information quality (sources, content, and presentation). Then, it will apply the information quality framework to North Korean activity analysis. It will conclude with implications of using the information quality framework to analyze a state that is low in accessibility and high uncertainty.

Recently, elevator inspection and self-examination were strengthened through the revision of the Elevator Safety Management Act, but there have been no significant reduction in serious accidents and major failures. Therefore, the government intends to lay the foundation for reflecting the safety quality rating system, which adjusts the elevator inspection cycle, as a policy to induce safety management of preemptive and active management entities. This study systematically reviewed and classified the safety quality rating system for elevator inspection cycle adjustment in previous studies, collected expert opinions, and reconstructed the key items into realistic evaluation items, and evaluated and scored the relative importance of each factor through the AHP technique.

목적 : 본 연구는 요양시설에 거주하는 65세 이상 노인들을 대상으로 한국형 활동분류카드(Korean Activity Card Sort; K-ACS)를 통해 참여활동수준을 측정하고, 삶의 질에 미치는 요인에 대해 알아보 고자 하였다. 연구방법 : 2021년 7월 1일부터 2021년 8월 31일까지 수도권 요양시설 거주 노인 78명을 대상으로 자 가 보고식 설문지와 평가를 실시하였다. 대상자들의 참여활동수준, 우울, 자기효능감, 일상생활수행능력, 삶의 질과의 관계를 피어슨 상관분석과 다중회귀분석으로 알아보았다. 결과 : 요양시설 거주 노인을 대상으로 참여활동수준을 측정한 결과 전체 참여활동수준 27.8%, 수단적 일 상생활활동수준 26.9%, 여가활동수준 36.5%, 사회활동수준이 21.0%로 나타났다. 전체 참여활동수준은 수단적 일상생활활동수준(r = .937, p < .01), 사회활동수준(r = .858, p < .01)과 높은 상관성을 보 였다. 또한 삶의 질에는 정신적 요소인 우울(β = -.514, p < .001)과 자기효능감(β = .266, p < .05) 이 영향을 미치는 것으로 확인되었다. 결론 : 작업치료사는 노인들의 성공적인 노화를 돕기 위해 시설 내에 다양한 활동프로그램을 마련하고 노 인들이 활동에 참여할 기회를 제공하여야 한다. 이러한 작업치료사의 역할은 시설 거주 노인의 우울감을 완화하고 자기효능감, 참여활동수준을 높임으로써 궁극적으로 삶의 질을 향상시킬 것으로 기대된다.

본 연구는 노인의 삶의 질 향상에 영향을 미치는 고령친화적 환경 요인을 파악하는 것을 목적으로 하고 있다. 본 연구는 원주시에 거주하는 65세 이상 노인 370명을 대상으로 조사를 실시하였으며, ‘미국은퇴자 협회(AARP)의 고령친화 환경 평가 도구(7영역)와 삶의 질’을 통해 조사를 실시하였다. 연구결과 고령친화 적 환경 요인으로 ‘잘 관리된 안전한 공원’, ‘공용시설이 잘 구비된 다양한 가격의 주택’, ‘읽기 쉬운 교통 표지판’, ‘신뢰할 수 있는 대중교통’, ‘이웃으로부터 존중받는 정도’가 중요한 것으로 나타났다. 그리고 노인 의 삶의 질 향상과 관련해서는 ‘주거환경’과 ‘이웃과의 관계’, ‘거주안전성’이 중요한 것으로 나타났다. 이 같은 연구결과를 토대로 본 연구는 원주시 노인의 삶의 질을 향상시키기 위한 방안으로 노인편의시설 확충, 이웃과의 사회적 관계망 형성 등을 제안하고, 고령친화 도시 환경 조성의 필요성과 중요성을 강조하였다.

Sodium intake has been associated with the health-related quality of life (HRQoL). This study examined the demographic factors related to HRQoL and whether there is an association between sodium intake and HRQoL in adults residing in rural areas. A total of 1,980 adults (aged ≥20 years) were selected from a cross-sectional study conducted between December 2013 and February 2014 in Gyeongju, South Korea. The sodium intake and HRQoL were measured using a validated food frequency questionnaire and the EuroQol Five-Dimension (EQ-5D) (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression), respectively. The education levels (<5 years) were inversely associated with all five dimensions of HRQoL. Men had better EQ-5D scores for each of the five components examined. Adults living with spouses had better scores related to usual activities and anxiety/depression, whereas widowers had decreased scores of mobility and self-care. Unlike older adults aged 70-79 years, adults aged <60 years were more likely to have greater scores related to mobility, usual activities, and pain/discomfort. The income levels were also inversely related to the scores for self-care, usual activities, pain/discomfort, and anxiety/depression. Sodium intake was positively associated with the HRQoL related to self-care, usual activities, and pain/discomfort, but it was negatively associated with anxiety/depression. In conclusion, these findings suggest that the demographic factors and sodium intake were independently associated with HRQoL. The results highlight the need to provide tailored, targeted policies and interventions that consider personal characteristics and dietary intake to improve the overall HRQoL in adults residing in rural areas.

In this study, through an AHP (Analytic Hierarchy Process) analysis, the internal construction project was designed to analyze the factors affecting the performance of the project and provide suggestions on the quality of communication. To carry out this study, a selection factor was selected by referring to AHP theory and existing prior research. AHP technique was used to collect weights after analysis, examine and analyze gaps. In the interior construction project, the most important factor among the factors influencing the quality of communication to the project performance was communication interaction. Among the sub-factors, accuracy of exchange of information and timeliness of communication were shown in the order of importance. Looking at the results of comprehensive analysis of the first and second layers, the accuracy of information exchange among the elements of communication quality was found to be the number 1 in weight. The timeliness of communication, which is ranked second, and communication that takes place at an appropriate time can lead to efficiency in shortening the project execution period by eliminating unnecessary work. And, Among the factors that affect communication quality, it was analyzed that communication method is not an important factor when compared to other factors. This study shows that quality of communication influences the performance of interior construction projects and provides suggestions for improving communication quality. And it has been confirmed that managing communication quality can act as an important issue that can improve business performance in project execution and production of results.

In this study, we performed algorithms to predict algae of Chlorophyll-a (Chl-a). Water quality and quantity data of the middle Nakdong River area were used. At first, the correlation analysis between Chl-a and water quality and quantity data was studied. We extracted ten factors of high importance for water quality and quantity data about the two weirs. Algorithms predicted how ten factors affected Chl-a occurrence. We performed algorithms about decision tree, random forest, elastic net, gradient boosting with Python. The root mean square error (RMSE) value was used to evaluate excellent algorithms. The gradient boosting showed 10.55 of RMSE value for the Gangjeonggoryeong (GG) site and 11.43 of RMSE value for the Dalsung (DS) site. The gradient boosting algorithm showed excellent results for GG and DS sites. Prediction value for the four algorithms was also evaluated through the Receiver operating characteristic (ROC) curve and Area under curve (AUC). As a result of the evaluation, the AUC value was 0.877 at GG site and the AUC value was 0.951 at DS site. So the algorithm‘s ability to interpret seemed to be excellent.

This study was conducted on the foundation of the previous research on determinants such as customer satisfaction and behavioral intention, along with the literature review and research on factors related to the service quality elements. We collected and analyzed the 185 materials by conducting the survey upon the customers who have previously visited the restaurants. As a result of the analysis, we identified that the elements of restaurant service quality have significant effects on the behavioral intention and satisfaction level of the customer through the customer satisfaction. In addition, by using KANO model, we investigated the qualities that attract the customers of the restaurant in order to establish the measures that will maximize the customer satisfaction. Also, to overcome the limitation of KANO model, we additionally analyzed the Better-Worse index. The results of the two quality evaluations were identical to each other, showing the need for improving the physical environment of the restaurant services. Accordingly, more interests and efforts to stimulate the behavioral intention of the restaurant are needed.

본 연구는 경기도 장애인거주시설 종사자의 서비스 질에 영향을 미치는 요인을 분석하여 개선방안을 강구하는데 목적이 있다. 분석결과는 다음과 같다. 조직특성에 유의미 한 차이를 가져오는 변수는 연령, 학력, 근무기간이었으며, 직무소진의 변수에는 연령, 학력, 고용형태, 임파워먼트에는 연령, 학력, 근무기간, 직무 스트레스에는 월급여, 고용 형태, 학력, 일가치감에는 학력, 근무기간, 고용형태, 직무만족에는 연령, 월급여, 고용형태, 서비스 질은 연령, 고용형태, 월급여 등이었다. 따라서 장애인거주시설에 다음과 같이 요구되어 진다. 첫째, 종사자의 직무소진 및 직무 스트레스의 예방 및 대응조치가 강구되어야 한다. 둘째, 장애인거주시설 종사자의 서비스 질을 높이기 위해서는 종사자들 이 직무환경요인에 변화가 있어야 한다. 셋째, 장애인거주시설 종사자의 서비스 질에 영 향을 미치는 조직특성, 직무소진, 임파워먼트, 직무 스트레스, 일가치감 등을 분석하여 종사자가 직무에 만족할 수 있도록 근무환경을 조성할 필요가 있다.

본 연구는 심뇌혈관질환 예방프로그램이 지역사회 노인의 심혈관 위험요인과 삶의 질에 미치는 효과를 확인하고자 실시하였다. 유사실험설계의 비동등성 대조군 전후설계를 이용하였다. 연구대상자는 지역사회 노인으로 실험군 22명, 대조군 22명 총 44명을 편의표집하였고, 심뇌혈관질환 예방프로그램을 제 공하고 심혈관 위험요인과 삶의 질을 측정하였다. 심뇌혈관 예방프로그램에 참여한 실험군은 대조군에 비해 심혈관 위험요인인 수축기 혈압(t=-2.419, p= .020), 이완기 혈압(t=-2.226, p= .031), 혈당(t=-2.071, p= .045)이 유의하게 감소하였고 삶의 질은 향상되었다(t=2.511, p= .016). 그러나 총콜레스테롤과 고밀도 지단백콜레스테롤은 유의한 변화가 없었다. 이에 심뇌혈관질환 예방프로그램이 지역사회 노인의 심혈관 위험요인 감소와 삶의 질 향상에 효과적임을 확인할 수 있었다.

본 논문은 전후기 여성 독거노인의 건강관련 삶의 질 영향 요인을 알아보고자 하는 서술적 조사 연구로 2017년 <여성 독거노인의 통증, 영양위험, 외로움, 지각된 건강상태가 건강관련 삶의 질에 미치는 영향>인 일차연구 자료와 추가 수집한 자료 총 85부를 이용한 이차분석 연구이다. SPSS/WIN 18.0 program을 이용하여 분석한 결과, 전기 여성 독거노인의 건강관련 삶의 질 영향 요인은 통증, 규칙적인 운동, 사회적지지 순으로 설명력 70.6%이며 후기 여성 독거노인의 건강관련 삶의 질 영향 요인은 규칙적인 운동, 일상생활수행능력, 통증 순으로 건강관련 삶의 질에 영향을 주는 것으로 설명력은 69.7%로 나타났 다. 따라서 통증 감소를 위한 방안과 사회적지지 체계의 강화, 생활체육 활성화 및 그에 따른 일상생활 수행 유지를 위한 노력 등의 모색을 통해 건강관련 삶의 질을 향상 시킬 필요가 있다.

This paper is an exploratory study on the success factors of Defence Quality Management System (DQMS) which is the certification system granted by the military for improving the quality of munitions. DQMS is established by adding military requirements to the ISO standard, thus, we especially focus on the additional requirements to figure out success key factors of DQMS certification. The 51 additional requirements of Korean Defense Specification (KDS) are empirically investigated from 67 companies that acquired DQMS certification. Firstly, we conduct an independent t-tests on 51 additional requirements of KDS 0050-900-3 to determine if there is a difference between an easily certified company and a hard-to-certify company, and obtain 8 requirements such as ‘Internal propagation of performance’, ‘Preparation of documented work instructions’, ‘Work instructions in the workplace’, ‘Documentation of equipment management’, ‘Inventory management’, ‘Packaging and identification’, ‘Guarantee of access to internal audit result for customers’, ‘Notification to the customer for improper product.’ Secondly, we carry out an factor analysis to the 51 additional requirements for classification, and figure out that 4 requirements among the 8 requirements above mentioned are grouped together in the same factor. The 4 requirements are ‘Preparation of documented work instructions’, ‘Work instructions in the workplace’, ‘Packaging and identification’, and ‘Guarantee of access to internal audit result for customers.’ The result of this paper will provide useful information to the company preparing for DQMS.