• 경영과학
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• 제11권1호
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• pp.91-106
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• 1994

In mixed model assembly lines, products are assembled seqeuntially that have different combination of options specified by customers. In just in time (JIT) environment, production smoothing becomes an important issue for sub-lines which supply the necessary parts to each workstation of the assembly line. Another important issue is to avoid line stopping caused by work overload in workstations. To find a sequence which minimizes the costs associated with line stoppage and the option parts inventory level, a nonlinear mixed integer programming is formulated. Recognizing the limit of the Branch and Bound technique in large sized problems, a heuristic solution procedure is proposed. The performance of the heuristic is compared with the Branch and Bound technique through randomly generated test problems. The computational results indicate that on the average the heuristic solutions deviate approximately 3.6% from the optimal solutions.

• 디지털산업정보학회논문지
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• 제18권4호
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• pp.85-96
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• 2022

Personalized recommendation technology is one of the most important technologies in electronic commerce environment. It helps users overcome information overload by suggesting information that match user's interests. In e-commerce environment, both mobile device users and smart device users have risen dramatically. It creates new challenges. Our method suggests product information that match user's device interests beyond only user's interests. We propose a device-centered personalized recommendation method. Our method uses both purchase and share behavior for user's devices interests. Moreover, it considers data type preference for each device. This paper presents a new recommendation method and algorithm. Then, an e-commerce scenario with a computer, a smartphone and an AI-speaker are described. The scenario shows our work is better than previous researches.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1995년도 추계학술발표회논문집(1)
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• pp.147-152
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• 1995

During transients or major upsets, operators of a nuclear power plant are faced with a significant amount of information which oftentimes exceeds their capability of processing information in such a time-critical situation. To help resolve this problem of information overload, considerable work is underway worldwide to improve its man-machine interface systems (MMISs). The I&C research team of KAERI is developing a DYNamic Alarm processing System, called DYNAS, to suppress unnecessary or nuisance alarms, and at the same time, emphasize vital information. This paper describes our basic strategy to process alarms in DYNAS.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.30-31
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• 2021

The construction industry is an industry in which skilled construction workers should be secured and trained because of the quality and productivity of buildings, but the negative image makes it difficult to supply and demand skilled construction workers. In response, this study derived the factors influencing the intention of transferring construction workers to other occupations and investigated ways to improve the prevention of leaving other occupations by age of construction workers. The factors influencing the turnover of construction workers have also been derived, and work overload, salary, workplace stability, and employment competitiveness have a significant impact on the intention of new employees to change jobs. According to a survey on ways to improve the prevention of leaving other jobs, those in their 20s and 30s are "improving working conditions, such as providing holidays, paying overtime, compliance with working hours," and those in their 50s and 60s.

• 한국직업건강간호학회지
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• 제6권1호
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• pp.23-43
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• 1997

The work-related diseases due to continuous overwork are mainly cerebro- and cardio-vascular ones, which is commonly called 'Karoshi', death from overwork. Many factors are capable for Karoshi : occupational stress in relation to technological renovation and industrial rationalization, competitive social structure, and accumulated fatigue accured to long time or irregular working. And its occurence is on the rise. The World Labor Report 1993 released by ILO, pointed out the diseases related to overwork and stress as one of the most important occupational health problem. In Korea, social awareness of Karoshi is at an infant stage, and reliable statistics for its occurence are not compiled in a convenient manner. Despite the rising Karoshi, there are no reliable clauses in workmen's compensation enough to settle down the disputes. Therefore, it is not uncommon that the Labour Ministry and Civil Court find difficulties in reaching an agreement. This study was intended to provide proper compensation and prevention program for workers by suggesting reasonable compensation clauses for the death from overwork. This study consists of two comparative reviews on the compensaton clauses for the death from overwork. One is to review legal standards of Karoshi among three countries, such as Korea, Japan and Taiwan. The other is to investigate the cases of Karoshi in Korea, 121 cases identified at the Labor Welfare Corperation and the Labour Ministrial process of examination and reexamination, and 73 leading cases at the High Court of Justice. The main findings of the study are as follows : 1. Comparisons of comperative review on compensation clauses for the death from overwork among three countries. 1) All of three countries have the same kinds of disease for compensation, which were cerebro-and cardiao-vascular diseases, while for cardiac disease group, Korea has the smaller number of diseases for compensation than Japan. 2) As for the definition of overwork, the three countries share equally that overload for one week prior to collapse is considered as an important factor, but accumulated chronic fatigue is disregarded. 3) As the basis of overwork, in Japan, there is a tendency to move from the conditions of an ordinary healthy adult to those of the individual concerned in Japan, whereas there is no such concern yet in Korea. 4) All the three countries use a common standard of medical judgement in demonstrating causal relationship between a job and a disease. However, Korea is progressive in the sense that in the case of CVA at worksite, the worker himself has no obligation to prove the cause. 2. The results of a comparative review on excutive decisions by Labor Ministry and judicial decisions by the Court in Korea : A judicial decision is based on the legalistic probability, but a excutive decision is not. Therefore, excutive decisions have such restrictions that : 1) TIA (transitory ischemic cerebral attack) and myocarditis are excluded from compensation, and there is little consistency of decision in the case of cause-unknown death. 2) There is a tendency not to compensate for the death from overwork since the work terms such as repeated long-time working, shift work or night-shift work are not considered as overloading. 3) There is a tendency to regard the conditions of a ordinary healthy adult rather than those of the individual concerned(age, existing diseases, health state, etc.) as the comparative basis of overload. 4) There remains a tendency not to compensate for the death from overwork in the case of collapse occuring out of workplace, on the ground of 'on the course of working' and 'in the cause of accident'. Through the study, the fact manifests itself that Korea's compensation clauses for work-related diseases due to overwork are very restrictive. So, it is necessary to extend the Labor Ministry's clauses of compensation for the death from overwork following to the recent changes of other countries and internal judicial decisions. This is very important in the perspective of occupational health that aims at health promotion of workers including prevention of the Karoshi.

• 한국병원경영학회지
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• 제7권2호
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• pp.99-123
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• 2002

This study was conducted to determine whether follow-up management is carried out continuously following CQI activity and to analyze the factors behind the success and failure of follow-up management. Past presentations from 1994-1999 of CQI coordinators and lecturers from various institutions who presented at The Korean Society of Quality Assurance in Health Care(KoSQA) on the conditions of follow-up management in each institution were analyzed. The results of this study were as follows; Since the number of subjects on CQI increased each year at symposiums, this has expanded to all medical institutions. Although medical institutions usually conduct 11-20 subjects on CQI per year, there were many such occasions where more than 31 subjects were conducted. Moreover, institutions with less than 800 beds have come up with more projects than those with more than 800 beds, thus 23.3% of these institutions had at least 1 person involved in 4 projects. This had created an overload of responsibilities for specific persons' involvement, prompting them to incline toward formalities in their work rather than substantial activities. Among the projects presented at the symposiums, 51.7% demonstrated that follow-up management could be carried out. In particular, 55.3% of the projects from provincial regions could carry out follow-up management compared to 48.8% in Seoul. Moreover, it was demonstrated that 80% of the projects from institutions with 600-799 beds carried out follow-up management most effectively. With regards to previous presentations, the older they were, it was found that follow-up management could not be effectively carried out. Some institutions that responded that follow-up management was carried out effectively in their institutions were found to have conducted follow-up management without any inspection strategies or the appropriate tools. CQI activities were executed and terminated with no consistency and team members had no real concern for it. The most important factors that contribute to an effective follow-up management are the need for concern and interest from the directors of the hospitals, from the relevant departments and team members in addition to the role of the supervising department, follow-up management through management of target goals, consistency in tasks along with communication between all team members. The biggest problems were perceived to be overload of work due to accumulation of proposed projects in addition to lack of awareness pertaining to follow-up management. CQI is beneficial for all staff for the improvement of the mind and business administration and thus it is believed to be desirable. To carry out follow-up management effectively, leadership, analysis and application of information, follow-up management and planning, as well as quality management are perceived to be essential, on the other hand, the results showed a significant difference. To prevent CQI activities from becoming just an activity, the basic system should be reconstructed and augmented based on the problems derived from the results of this study. Moreover, we hope this study will be used as reference material that would encourage the administration of follow-up management after CQI activities in most hospitals. Furthermore, various studies on follow-up management should be conducted for CQI activities in the future.

• 한국산학기술학회논문지
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• 제17권8호
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• pp.301-310
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• 2016

본 연구는 보육교사의 직무스트레스 정도와 근골격계 자각증상을 파악하고, 직무스트레스와 근골격계 자각증상과의 관련성을 확인하기 위한 서술적 조사연구로서 어린이집에 근무하는 보육교사 132명을 대상으로 하였다. 본 연구에서 수집된 자료는 SPSS/WIN 18.0 프로그램을 이용하여 분석하였다. 연구결과 직무스트레스는 5점 만점에 평균 2.80점이었고, 하부영역별로는 업무과부하 3.35점, 학부모와의 관계 3.13점, 원장지도력 및 행정적 지원부족 2.56점, 동료와의 관계 2.27점이었다. 근골격계 NOISH 양성자 기준에 의한 근골격계 자각증상이 있는 대상자는 46.2%(61명)였고, 신체부위별 근골격계 자각증상은 어깨부위가 25.8%(34명)으로 가장 많았고, 허리 18.9%(25명), 손/손목/손가락 17.4%(23명), 목 11.4%(15명), 다리/발 9.1%(12명), 팔/팔꿈치 7.6%(10명) 순으로 나타났다. 근골격계 자각증상의 유무에 따라서 직무스트레스 총점, 업무과부하, 학부모와의 관계 점수에 차이가 있었다. 또한 근골격계 자각증상과 직무스트레스 총점(OR=1.02, 95CI=1.01-1.04), 업무과부하(OR=1.08, 95CI=1.02-1.15), 학부모와의 관계(OR=1.21, 95CI=1.06-1.37)가 관련성이 있는 것으로 나타났다. 이러한 결과는 직무스트레스 경감을 통한 근골격계 증상 예방 프로그램 개발의 기초자료로 활용될 것을 기대한다.

• 디지털융복합연구
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• 제16권7호
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• pp.97-105
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• 2018

4차 산업혁명은 정보통신 분야에 큰 변화를 가져오고 그로 인해 다양한 일자리가 창출될 것으로 예상된다. 그러나 신기술 등장에 따른 직무 스트레스와 불확실성으로 IT 인력의 심리적 불안감은 증대되고 있다. 연구자는 전문직 정체성이 정보시스템(IS) 운영인력의 직무 스트레스와 정서적 소진을 어떻게 조절하는지 살펴보았다. 실증연구를 위해 정보시스템 관리 및 지원업무를 담당하는 160명을 대상으로 설문을 배포하여 데이터를 수집하였고, SPSS 21을 사용하여 가설을 검증하였다. 분석 결과, 직무 스트레스의 구성요소인 역할갈등, 역할모호, 질적 업무과부하는 정보시스템 운영인력의 정서적 소진에 영향을 미쳤으며, 전문직 정체성은 질적 업무과부하와 정서적 소진의 관계를 조절하고 있었다. 반면, 전문직 정체성은 역할갈등과 정서적 소진, 역할모호와 정서적 소진의 관계를 조절하지 않는 것으로 나타났다. 전문직 정체성이 신기술 도입에 따른 심리적 부담과 정서적 소진을 조절하는 만큼, 조직에서는 개개인의 전문직 정체성을 높이기 위한 지원을 제공해야 할 것이다.

• 대한시과학회지
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• 제20권4호
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• pp.403-411
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• 2018

목적 : 본 연구는 안경사들을 대상으로 안경원의 어떠한 노력들이 안경사들의 직무만족과 조직몰입에 영향을 미치며, 안경사의 직무만족과 조직몰입이 안경사의 고객지향성에 어떠한 영향을 미치는 지를 분석함으로써 안경원의 경쟁력 유지 방안을 제시하는데 그 목적이 있다. 방법 : 본 연구는 전국의 안경사 200명을 대상으로 하였으며, 인터넷과 SNS를 통해 수집된 설문지를 SPSS ver. 18.0을 이용하여 빈도분석, T-test, 요인분석, 신뢰도분석, 다중회귀분석을 실시하였다. 결과 : 안경원의 형태, 탄력근무제와 주5일근무제의 시행여부에 따른 직무만족과 조직몰입의 차이를 분석하였다. 그 결과 주5일근무제를 시행하는 안경원에 근무하는 안경사들의 직무만족이 높은 것으로 나타났다. 안경원의 동료관계요인은 직무만족에 통계적으로 유의한 정(+)의 영향을 미치고, 감정노동요인과 직무과부하요인은 직무만족에 통계적으로 유의한 부(-)의 영향을 미치는 것으로 분석되었다. 또한 동료관계요인과 보상요인은 조직몰입에 통계적으로 유의한 정(+)의 영향을 미치고, 감정노동요인과 직무과부하요인은 조직몰입에 통계적으로 유의한 부(-)의 영향을 미치는 것으로 분석되었으며, 안경사의 직무만족과 조직몰입은 고객지향성에 통계적으로 유의한 정(+)의 영향을 미치는 것으로 분석되었다. 결론 : 안경원은 소속 안경사들이 보다 더 고객지향적인 태도로 업무에 임하도록 하기 위해 안경사의 직무만족도와 조직몰입도를 향상시킬 필요가 있다. 그리고 안경사의 직무만족도와 조직몰입도를 향상시키기 위해 동료 또는 상사와 서로 신뢰하고 존경하는 관계를 형성할 수 있도록 하는 노력이 필요하다. 또한 안경사들의 자기관리를 위해 지속적인 소통과 교육이 필요하다. 그리고 실효성있는 보상체계를 마련할 필요가 있다.

• 벤처창업연구
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• 제17권3호
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• pp.215-227
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• 2022

디지털 전환 패러다임 속에 기업 내 IT 인력은 조직에 신기술 도입을 주도하고, 기술 축적, 개발 및 관리 등 IT 자산을 운용하는 핵심적 역할을 담당하고 있다. 하지만, 상대적으로 직무수명이 짧고 높은 이직률로 인해 기업들은 여전히 IT 인력의 부족이나 이직으로 인한 문제를 겪고 있다. 본 연구에서는 IT 종사자를 대상으로 테크노스트레스, 스트레스 대처 및 직무소진과의 관계를 파악하고자 한다. 이를 통해, IT 종사자에게 동기를 부여하고 업무 효율성을 높이기 위한 접근 전략을 제시하고자 하였다. 이를 위해 국내 IT 종사자를 318명을 대상으로 주요 변인 간 관계를 분석하였으며, 주요 분석결과를 제시하면 다음과 같다. 첫째, 테크노스트레스가 스트레스 대처에 미치는 영향 관계에서는 기술불확실성, 기술불안감이 문제 중심적 대처에 통계적으로 유의한 정(+)의 영향을 미치는 것으로 나타났다. 또한 테크노스트레스가 감정 중심적 대처에 미치는 관계에서는 기술복잡성, 기술불확신성, 기술불안감이 감정 중심적 대처에 모두 유의한 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 스트레스 대처와 직무소진과의 관계에서는 문제 중심적 대처는 직무소진에 유의한 영향 관계는 나타나지 않았지만, 감정 중심적 대처는 직무소진에 정(+)의 관계가 나타났다. 마지막으로 테크노스트레스가 직무소진에 미치는 관계에서는 기술불확실성, 기술침해가 직무소진에 통계적으로 유의한 정(+)의 영향관계가 나타났다. 또한 스트레스 대처를 매개하는 간접경로 분석결과에서는 기술과부하와 기술복잡성은 감정 중심적 대처를 통해 직무소진에 간접효과를 미치는 것으로 나타났다. 이러한 연구결과는 디지털 전환 패러다임 속에서 IT자산의 효율적 운용과 경쟁력 강화의 핵심적 역할을 담당하는 IT 종사자에게 동기를 부여하고 업무효율성을 높이기 위한 조직차원의 전략적 접근 방향에 하나의 근거자료를 제시할 수 있을 것으로 기대한다.