• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.5
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• pp.305-315
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• 2016

Due to the change from small volume production to small quantity batch production systems, individual companies have been attempting to produce a wide range of operating strategies, maximize their productivity, and minimize their WIP level by operating with the proper cycle time to defend their market share. In particular, using a complex workflow and process sequence in the manufacturing line has some drawbacks when it comes to designing the production strategy by applying analytical models, such as mathematical models and queueing theory. For this purpose, this paper uses three heuristic algorithms to solve the job release problem at the bottleneck workstation, product mix problem in multi-purpose machine(s), and batch size and sequence in batch machine(s). To verify the effectiveness of the proposed methods, a simulation analysis was performed. The experimental results demonstrated that the combined application of the proposed methods showed positive effects on the reduction of the cycle time and WIP level, and improvement of the throughput.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.10
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• pp.655-665
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• 2016

Considering the importance of SMEs, which account for 88% of employment and 99% of domestic businesses, the government has implemented informatization policy support. On the other hand, due to budget limitations and the ability of the private market, it is time to transition to the new policy of the informatization support paradigm. This study evaluated the informatization policy support of SMBA by a comparison with the stage model to determine the future direction. The informatization development model is a step model divided into five levels ranging from the informatization initiation level to the strategic innovation level. The informatization policy of SMBA was focused on the development of automation and in-house integration, and business-to-business integration and strategic innovation step was found to be lacking. Based on these results, there are three implications for the informatization policy of the next SMEs. First, there is a need for a movement of the center of the support in the informatization step to the strategic innovative step. Second, by establishing an informatization road map, it is necessary to develop their own informatization capabilities according to the road map. Finally, it is important to improve the effectiveness of informatization support based on performance rather than policy providers.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.4
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• pp.101-111
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• 2019

In distance learning, quality of service is an important part of improving customer satisfaction and customer loyalty. However, in verifying the effectiveness of remote education service quality, it has been researched based on fragmentary effects on remote education service quality, and the effect study on the specific target is insufficient. In this study, the effects of remote education service factors on customer satisfaction and customer loyalty were analyzed in the previous study and among job seekers. The survey was conducted from March 2019 and 258 samples of job seekers who experienced remote education were used for empirical analysis. As a result of the analysis, typology, problem solving, interaction, information serviceability, and convenience had a positive effect on customer satisfaction, and satisfaction had a significant influence on customer loyalty. In addition, it was analyzed that characterization, problem-solving, interaction, information serviceability, convenience and customer loyalty were affected in the verification of the mediated effects of satisfaction. In response, the implications of this study were derived from practical research on customer satisfaction and loyalty of educational companies related to eduTech, where education and ICT (Information Communication Technology) were integrated during the 4th Industrial Revolution, which suggested that the quality of a company's remote education service affected customer satisfaction and customer loyalty to entrepreneurs and marketers in the education company's start-up and marketing process. Further, further research will be needed in other areas as well as in the areas of employment education to verify the importance of service quality and assess the various effects.

• The Journal of Society for e-Business Studies
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• v.23 no.3
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• pp.207-224
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• 2018

In this article, an empirical study was conducted by using public dataset from Lending Club Corporation, the largest online peer-to-peer (P2P) lending in the world. We explore significant predictor variables related to P2P lending default that housing situation, length of employment, average current balance, debt-to-income ratio, loan amount, loan purpose, interest rate, public records, number of finance trades, total credit/credit limit, number of delinquent accounts, number of mortgage accounts, and number of bank card accounts are significant factors to loan funded successful on Lending Club platform. We developed online P2P lending default prediction models using discriminant analysis, logistic regression, neural networks, and decision trees (i.e., CART and C5.0) in order to predict P2P loan default. To verify the feasibility and effectiveness of P2P lending default prediction models, borrower loan data and credit data used in this study. Empirical results indicated that neural networks outperforms other classifiers such as discriminant analysis, logistic regression, CART, and C5.0. Neural networks always outperforms other classifiers in P2P loan default prediction.

• The Journal of Society for e-Business Studies
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• v.24 no.3
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• pp.19-33
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• 2019

Recently, manufacturers have been struggling to efficiently use production equipment as their production methods become more sophisticated and complex. Typical factors hindering the efficiency of the manufacturing process include setup cost due to job change. Especially, in the process of using expensive production equipment such as semiconductor / LCD process, efficient use of equipment is very important. Balancing the tradeoff between meeting the deadline and minimizing setup cost incurred by changes of work type is crucial planning task. In this study, we developed a scheduling model to achieve the goal of minimizing the duedate and setup costs by using reinforcement learning in parallel machines with duedate and work preparation costs. The proposed model is a Deep Q-Network (DQN) scheduling model and is a reinforcement learning-based model. To validate the effectiveness of our proposed model, we compared it against the heuristic model and DNN(deep neural network) based model. It was confirmed that our proposed DQN method causes less due date violation and setup costs than the benchmark methods.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.2
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• pp.211-220
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• 2019

Role model has received remarkable attentions in entrepreneurship literature over long time but majority of studies were conducted in western context. As an explorative study, this paper attempted to replicate the effect of role model in eastern context based on the discussions in the literature, using total 440 samples made of Korean and Chinese university students. This study examined the impact and effectiveness of role model on promoting entrepreneurship of university students, considering the main stream of entrepreneurship study has been concentrated on the effect of entrepreneurial education. Our findings presented that role model had a positive impact on both entrepreneurial self-efficacy and entrepreneurial intention of Korean and Chinese university students. Also, entrepreneurial self-efficacy had a significant and positive relationship with entrepreneurial intention of university students. The result of this study implies that role model need to be factored into entrepreneurship education curriculum in order to make it more effective and powerful promotional and educational tool for young university students. Theoretical and practical implications were presented based on the findings of this study.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.16 no.3
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• pp.59-72
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• 2021

Research in which an individual's entrepreneurial spirit contributes to the country's economic development through revitalization of entrepreneurship is being actively conducted, but studies related to individual satisfaction or life satisfaction are still insufficient. This study aims to clarify the influence of young adults' entrepreneurial spirit on their life satisfaction and at the same time verify the mediating effect of self-efficacy and self-determination. In addition, an empirical analysis was conducted on 511 young people to reveal the effectiveness of participation in government start-up support projects. The research results are as follows. First, the entrepreneurial spirit had a positive effect on the life satisfaction of young people. Second, self-determination and self-efficacy played a role in mediating the relationship between entrepreneurship and life satisfaction. Finally, participation in start-up support projects did not show a statistically significant moderating effect. This study is expected to provide a clue that life satisfaction can act as a major variable in the impact of entrepreneurship on entrepreneurship. It also implies that the performance of the government start-up support project should be considered not only about the quantitative performance such as sales and employment effect, but also the qualitative performance such as personal life satisfaction.

• Journal of Korea Entertainment Industry Association
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• v.15 no.8
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• pp.423-432
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• 2021

In this study, we investigated and the following conclusions are presented by identifying the current status and problems in order to expand the future's value of the community care project introduced and implemented to improve the quality and care for the elderly's life. First, the needs analysis of the elderly receiving services is composed of patient-centered rather than investigator-centered, and in particular, medical management through medical staff visits should be strengthened, and specialized service items according to gender, age, disability type, and personal preference should be strengthened. This will have to be gradually strengthened. Second, by analyzing the satisfaction, redundancy, and effectiveness of service items, we save money, and consider the consumer-oriented service item composition and application of items necessary for new services. Third, through the introduction of an integrated schedule management system, it is necessary to specialize in pre-booking and visit schedule management between the elderly and the direct service organizations that provide services. Fourth, as an effort to solve the financial problem, it is necessary to prepare a rational resource sharing system with health and medical finance, long-term care insurance system, and social welfare financial project. and it may consider that putting the medical personnel who are from local public medical college input. Through these proposals, the community care business will be able to complete and have future value as a universal aged care system.

• Journal of Digital Convergence
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• v.19 no.11
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• pp.225-234
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• 2021

This study is a cross-cultural study examining whether differences in perceptions of social gender roles in Korea and Uzbekistan have different effects on ad attitudes and product attitudes through the endorsers' gender. In particular, this study was focused on the difference between the facial expression of the endorser and the moderating effect of the ad situation in these relationships. The research results are as follows. First, the difference in the perception of social gender roles was larger in Uzbekistan than in Korea. Second, the influence of gender of endorser on ad attitude was perceived to be higher in Uzbekistan than in Korea. Third, the moderating effect of facial expression(Placid vs. Cold) in the effect of gender of advertising model on advertising attitude was found only in Uzbekistan. Fourth, the moderating effect of the ad situation (Office work vs. Family life) in the relationship between the endorsers' Gender and ad attitude was also found only in Uzbekistan. Fifth, the effect of consumer's ad attitude on product attitude showed a statistically significant positive relationship in both countries. This study reveals that cultural differences in the masculinity (or femininity) dimension between Korea and Uzbekistan are also affecting the effectiveness of ads. Therefore, this study suggests that global marketers should consider not only the existing information source effects such as reliability, professionalism, and attractiveness, but also the gender, facial expression, and ad situation of the endorser according to cultural differences when selecting an ad model.

• Korean small business review
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• v.41 no.3
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• pp.23-47
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• 2019

This study investigates the effects of three types of person-environment fit, i.e. POF, PJF(ability) and PJF(needs), on effectiveness variables and the mediating effect of work motivation in SMEs. The data were collected from 211 employees who work for SMEs. Results of structural equation modeling(SEM) analyses demonstrated that PJF(ability) was significantly associated with task performance and turnover intention, while POF and PJF(needs) were significantly associated with turnover intention only. PJF(needs) and PJF(ability) have the positive impact on intrinsic motivation, PJF(ability) also has the positive impact on external and identified motivation. We also analysed mediating effects using Process macro. Results demonstrated that intrinsic motivation mediated the relationship between POF, PJF(needs), PJF(ability) and task performance. The relationship between PJF(ability) and task performance was mediated by external motivation. Based on the results, theoretical and practical implications are derived. Also suggested are methodological limitations and future research directions.