• Journal of Internet Computing and Services
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• v.6 no.5
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• pp.1-9
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• 2005

In a role based access control through attribute certificate, the use of role assignment certificates and role specification certificates can reduce management cost and the overhead incurred by changing roles, Highly distributed computing environments such as ubiquitous computing environments not having global or broad control. need another attribute certificate management technique, Actually just having role specification certificate separately reduce management cost, But for better performance we structure role specification, We group roles and make the role group relation tree, It results secure and efficient role renewing and distribution, For scalable role specification certificate distribution, the multicasting of packets is used, We take into account the packet lass and quantify performance enhancements of structuring role specification certificates.

• The Journal of the Korea Contents Association
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• v.8 no.2
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• pp.182-194
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• 2008

Corporate managers look at IT outsourcing as long-term strategic choices not as short-term tactical ones, and maximizing the effect that IT outsourcing brings about is the main concern to them. Emerging different types of IT outsourcing and their effects on the corporate business decisions necessitate the research on this subject. According to previous researches, the Intent for IT outsourcing is categorized as IS Improvement, Business Impact, and Commercial Exploitation. The decison factors for these IT outsourcing include corporate strategy types, IT role, and interaction between these two. Firm size and IT maturity are selected as moderating factors to add the credibility to the research of the effect of IT outsourcing decision making. Analyzing collected data revealed that corporate strategy rather than IT role is more significant factor affecting the intent for IT outsourcing decision. Defenders(as in corporate strategy types) tend to use IT outsourcing more as a means to improve information systems, compared to analyzers and reactors. Prospectors tend to use IT outsourcing more as a commercial exploitation, compared to analyzers and reactors. These outcomes prove that corporate strategy characteristics reflect outsourcing intent. There were previous researches that showed outsourcing decision depends on IT role, however the hypothesis was rejected that IT role determines outsourcing intent. It was also rejected that the interaction between corporate strategy types and IT role determines outsourcing intent. Corporate decision makers should first analyze corporate strategy, and reflect it on the outsourcing intent when they make IT outsourcing decisions. Only the precise defining of IT outsourcing intent will lower the risk and increase the possibility of success.

• Journal of the Korea Society of Computer and Information
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• v.14 no.6
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• pp.91-98
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• 2009

In this paper, this model ensures confidentiality and integrity of mandatory access cotrol policy which based on fuzzy function with importance of information. And it solves authorization abuse problem through role graph creation algorithm and flowing policy that security grade is applied. Because this model composes role hierarchy which bind similar role concept to apply to commercial environment, it has expansile advantage by large scale security system as well as is easy that add new role.

• Journal of Digital Convergence
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• v.12 no.9
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• pp.101-109
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• 2014

The purpose of this study was to analyze the impact of mediator effect related to role-orientation of traditional newspaper editors in terms of role-cognition and role-orientation in aspects of real reportage attitude by classifying the newspaper editor's role-cognition with social stability, reform, check, on the other hand, role-orientation with reporter's intention, intention of actual fact, and reader's intention. The results were as follows: In terms of reporter's intention the research showed the fact that reporter's intentions was influenced by the role cognition of social stability and at the same time, it also made to reduce the attitude of real reportage. Compared with intention of actual fact and reader's intention, the intention of actual fact could be only influenced by the social stability, but it could not give any effectiveness to the attitude of real reportage, furthermore, the research showed the fact that reader's intention aroused some mediator effects which newspaper editor's role cognition gave rise to the attitude of real reportage much more strongly.

• 한국노년학
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• v.30 no.1
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• pp.159-177
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• 2010

This study focused on elderly caring issues and proposes Information Technology (IT) as the complementary tool of care activities, and it was aimed to identify application and feasibility of complementary IT for elderly care activities. Focus Group Interview (FGI) was conducted with current and potential caregivers respondents to explore caregivers' opinions and needs of care activities, and to suggest roles of IT which are helpful for elderly caregiving. The results showed that caregivers desire to check elderly care receivers' health, safety, and location whenever and wherever they want, and these caregivers' needs can be satisfied with IT by supporting caring ubiquitously. Moreover, this article provided more specific guidelines of IT applications for elderly caring services, so it expected positive roles of IT for elderly caring activities. However, this paper consequently emphasized IT must focus on only supporting and complementary roles of caregiving activities rather than alternative roles to enhance caregivers' caring efficiency and reduce their caring burden.

• Journal of the Institute of Electronics Engineers of Korea TE
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• v.39 no.3
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• pp.90-96
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• 2002

RBAC(Role-Based Access Control) is an access control method based on the user's role and it provides more flexibility on the various computer and network security fields. But, RBAC models consider only users for roles or permissions, so for the purpose of exact access control within real application systems, it is necessary to consider additional subjects and objects. In this paper, we propose an Extended RBAC model, $ERBAC_3$, for access control of multi-level security system by adding users, subjects, objects and roles level to RBAC, which enables multi-level security control. 

• Journal of Industrial Convergence
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• v.22 no.10
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• pp.153-165
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• 2024

The purpose of this study was to verify the effect of the social parental role and attitude of prospective parents recognized by adolescents on childbirth plans and child rearing, and the mediating effect of parental role confidence. Based on the data collected from 614 male and female high school students in D Metropolitan City who cooperated in advance, the study results were derived through Baron & Kenny's three-step regression analysis. First, it was found that the social parental role and attitude as prospective parents perceived by adolescents had a positive (+) effect on birth plans and child rearing. Second, it was found that the social parental role and attitude as prospective parents perceived by adolescents had a positive (+) effect on parental role confidence. Third, it was found that the social parental role and attitude as prospective parents perceived by adolescents had a positive (+) effect on childbirth plans and child rearing by mediating parental role confidence as a positive (+) effect. Based on these research results, it is hoped that it will be provided as basic data for the development of policies and programs related to low birth rates.

• Journal of the Korean association of regional geographers
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• v.12 no.5
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• pp.571-582
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• 2006

This study look into a role change and geographical inertia of the central place. The place is selected and progressed as the center which is the joining of physical condition and social situation of the region. The central place is the role change according to social change but it has geographical inertia as the central place. The result is as follows. Firstly, the role of regional center is changed. This sample region is the center of a national defense and administration and traffic in Three-Country period. But the role of the national defense is disappeared with the unity of the three countries. A traffic center facility was lost because of traffic axis changed from the east-west line to the north-south line when Ko-Ryo period. A facility loss as a traffic center leads to diminish the administration function and the movement of the regional center within that area. Secondary. the new regional center function was maintained by the joining of an outside and inside peoples. It maintained the geographical inertia by Confucianism culture instead of administration function. Thirdly, it had geographical location movement within the area.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.10a
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• pp.2-4
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• 2018

Most people cause disputes not to do things they do not want to do. Therefore, in this study, the mobile roulette system was studied to make role sharing easy and fun. The role sharing method is to rotate the roulette through the mobile application installed on the smartphone and throw the dart to check the result with the mobile application. Through this study, it is possible to set the role sharing that most people do not like to be as fun as the game, and the conflict due to the role sharing between family members can be reduced. It is also expected that it will contribute to leisure activities, not just unconditional roles.

• Journal of the Korea Computer Industry Society
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• v.10 no.1
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• pp.21-28
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• 2009

Role-Based Access Control Policy has a role hierarchies in which a higher case role can perform permissions of a lower case role. However, it is necessary for a lower case role to perform a higher case role's permission, which is not allowed to a lower case role, basically. In this paper propose a temporary permission delegation method. As the result of a temporary permission delegation, junior roles can perform senior roles' permissions in a dedicated interval.