• Journal of Digital Convergence
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• v.14 no.5
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• pp.237-245
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• 2016

Anxiety for employment of workers has been increased due to rapid change of management environment, which tends to increase psychological instability on the job of all workers. Accordingly, this study examined the moderating effect of self-efficacy between job instability and organizational citizenship behavior. The research subjects were employees of small and medium companies in the manufacturing industry in Daejeon-si, Sejong-si and Chungcheongnam-do and Chungcheongbuk-do. 500 sheets of the questionnaire were distributed from August 5, 2015 to August 30, 2015. Among them, 321 were collected with 64.2% of the response rate. Total 312 sheets were used for analysis excluding 9 sheets with incomplete answers. The results are as follows. Firstly, it proved that job instability had negative (-) effect on organizational citizenship behavior. Secondly, in the relation between job instability and organizational citizenship behavior, there was moderating effect of self-efficacy. Accordingly, if self-efficacy of the workers is higher in the threat of job instability, it means organizational citizenship behavior would increase. In conclusion, in the current situation where there is instable survival of corporation and job, the management of small and medium manufacturing company needs to increase self-efficacy through training and internal reward to employees. The limit of the study is that the research subjects were employees of small and medium companies in the manufacturing industry in Daejeon-si, Sejong-si and Chungcheongnam-do and Chungcheongbuk-do. Accordingly, as situational peculiarity may be observed, it is required to have expanded study to more various areas, works and industries.

• Journal of Digital Convergence
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• v.15 no.4
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• pp.377-386
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• 2017

This study was conducted to determine the relationship between the job stress levels of 669 subway operators in Seoul after the installation of screen doors and their mental health. Data were collected using a structured questionnaire and via web site. A multiple linear regression analysis was conducted using the SPSS 20.0 statistical program. The total score of job stress turned to be higher than the standard score, and physical environment, job demand, insufficient job autonomy, interpersonal conflict and occupational climate were within the top 50% and organizational system within the top 25%. A correlation analysis revealed that job stress was positively correlated with all sub-domains of mental health. In terms of effects of job stress on mental health, there were significant differences according to job demand, organizational system, lack of reward and occupational climate, with an explanatory power of 36.6%. It is expected that this study can provide foundation for the establishment of organizational measures accustomed to job characteristics to prevent job stress of subway operators and the development and implementation of intervention programs for mental health promotion.

• Journal of Digital Convergence
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• v.13 no.9
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• pp.149-159
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• 2015

This paper aims to examine the relationships between Leader Supervisory Style, Creativity and Job Involvement in the age of convergence. In addition, this study examined the moderating effects of Leader-Member Exchange. To accomplish these purposes, the main factors of the Leader Supervisory Style were found from the previous studies. The following are the summary of hypothesis test : First, Leader Supervisory Style have differential influence on Creativity. Second, Leader Supervisory Style have differential influence on Job Involvement. Third, the moderating effects of Leader-Member Exchange have partially moderated effect on the relationship between Leader Supervisory Style and Creativity. Forth, the moderating effects of LMX Leader-Member Exchange have partially moderated effect on the relationship between Leader Supervisory Style and Job Involvement. Therefore, the results of this study have many theoretical and practical implications.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.253-260
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• 2015

Because mass of activity records of individuals and organizations are accumulated in the digital space and amount of information is also increasing exponentially, the most urgent requirements of users is the tool for 'efficient' acquisition of 'useful' information. This paper try digital convergence to combine a domain specific technology with real time issue detection and grouping based on Web media. To derive core functionalities, we collect and analyze user requirements of national defense issue detection services. By utilizing linguistic resources specialized on national defence area and discovering features for measuring issue importance, we try to seek differentiation domain specific issue detection method. Finally we compare our detection results based on the development outputs of prototype.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.165-175
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• 2013

This study identifies the empirical effects of CEO's transactional leadership & transformational leadership(LEADERSHIP) on organizational effectiveness(OE) in the consulting industry. Next, this study identifies that if there are any differences on understanding on LEADERSHIP and OE depending on consulting organizations with a propensity for individualism. The analysis of the data shows LEADERSHIP is positively related to OE. Finally it is shown in this study that the consulting organizations with a high individualistic propensity(IP) show perception differences on charismatic leadership, compared to those with a low IP.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.357-368
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• 2015

This cross-sectional study was performed to offer radiographer who registered to the Korean Association of Radiographers as a basic material promote job satisfaction and lower job stress. A total of 213 radiographer were surveyed using a self-administered questionnaire. The 105 questionnaires consist of general characteristics, job characteristics, job stress, and job satisfaction. The job satisfaction was categorized into 3 sub-scales; psychological variables, environmental variables, and structural variables. The job stress insufficient job control, interpersonal conflict, job insecurity, organizational system, lack of reward, and occupational climate. Job satisfaction in psychological variables of radiographer was higher in the radiographers who have a high level of education, work in seoul,have a high sense of mission, don't have job leaving attitude, have a lower job insecurity. Job satisfaction in environmental variables of radiographer was higher in the radiographers who get lower salary. Job satisfaction in structural variables of radiographer was higher in the radiographers who have a high sense of mission, don't have job leaving attitude, have a lower organizational system, lack of reward, and occupational climate. Job satisfaction of radiographer was higher in th radiographers who don't have job leaving attitude, have a high sense of mission, have a lower lack of reward, and occupational climate.

• Journal of Digital Convergence
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• v.15 no.10
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• pp.349-356
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• 2017

This study is executed to investigate convergent factors to job burnout(MBI-GS: Maslach Bunout Inventory-General Survey) among hospital administrative staff. The survey was administered to 201 staff from 9 general hospitals located in J area from Jul. 3rd, 2017 to Jul. 29th, 2017. The structured self-administered questionaries were used. The hierarchical multiple regression analysis shows the following results. The MBI-GS of respondents turned out to be significantly higher in following groups: a group in which Organizational Commitment Questionnaire(OCQ) is lower, a group in which Type A Behavior Pattern(TABP) is higher, a group in which depression(CES-D: Center for Epidemiologic Studies Depression scale) are higher. The results show explanatory power of 52.1%. The results of the study indicate that the efforts, to increase OCQ, and to decrease TABP and CES-D, are required to improve the MBI-GS among hospital administrative staff. The results are expected to be useful for the program and human resource management to related to the MBI-GS among HAS. In the following study, the analysis of structural equation modeling about additional factors of the MBI-GS among hospital administrative staff will be needed.

• Journal of Digital Convergence
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• v.14 no.4
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• pp.315-324
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• 2016

This study, investigating the differences of public hospital employees' communication, motivation, mutual trust, working conditions, fair compensation, job satisfaction, is to identify the factors affecting organizational performance. Through this, an alternative is suggested, which can maximize organizational performance of hospital employees. The period was from October 5 to October 31, 2014 to collect the data from 232 subjects working in public hospitals. ANOVA and regression analysis were conducted and the finding shows that communication, motivation, mutual trust, working conditions, fair compensation, job satisfaction have a significant difference (p<0.05) based on job categories. In addition, the factors affecting organizational performance were communication and fair compensation (p<0.001) for nursing job, age and employment type (p<0.05) and fair compensation (p<0.001) for Medical Support, motivation and fair compensation (p<0.001) for administrative job. The efforts to improve human resource management in their organization which is able to inspire a sense of belonging should be followed.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.38 no.6
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• pp.629-636
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• 2014

For surface modification, bulk metallic glass coatings were fabricated using metallic glass powder and a mixture of a self-fluxing alloy or/and hard metal alloys with a heat-resisting property using a high velocity oxy-fuel coating thermal spraying process. Microstructural analyses and mechanical tests were carried out using X-ray diffraction, a scanning electron microscope, an atomic force microscope, a three-dimensional optical profiler, and nanoindenation. As a result, the monolithic metallic glass coating was found to consist of solid particle and lamellae regions that included many pores. Second phase-reinforced composite coatings with a self-fluxing alloy or/and hard metal alloy additives were employed with in-situ $Cr_2Ni_3$ precipitate or/and ex-situ WC particles in an amorphous matrix. The mechanical behaviors of the solid particles and lamella regions showed large hardness and elastic modulus differences. The mechanical properties of the particle regions in the metallic glass composite coatings were superior to those of the lamellae regions in the monolithic metallic glass coatings, but indicated similar trends in matrix region of all the coating layers.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.133-144
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• 2015

In digital convergence environment, information security management plays crucial role in maintaining firms' competitiveness. Organizational citizenship behavior(OCB) enables informations security countermeasures to be more effectively worked by helping employees to have much knowledge of information security policy, by facilitating employees to participate in information security education/training. Thus, the purpose of this study is to investigate the mediating effect of OCB on the relationships between information security countermeasures and compliance intention. Questionary was designed based on prior information security research, and survey was conducted among companies' employees across the industry. Results showed that information security policy and information security education/training were found to be key predictors of compliance intention. In addition, OCB was proven to mediate the relationships between information security countermeasures and compliance intention.