• KIPS Transactions on Computer and Communication Systems
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• v.2 no.9
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• pp.369-380
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• 2013

Recently, role-based distributed system models have been proposed to support adaptive interactions in ubiquitous application environment. A Role-based distributed model regards an application as an organization composed of roles, and separate players running role processes from the roles. When an application is running, it binds a role with a player, and the player runs dynamically assigned role processes provided by an application for supporting adaptability. However, there has not been much attention on researches about development and runtime environment for role-based distributed systems. In this paper we suggest an application framework as an environment for developing and executing role-base distributed systems. The application framework is divided into two parts: an organization framework to manage and construct an organization composed of roles necessary in the application, and a player framework to provide running environment for players. In this paper, we focus on the organization framework which supports the creation and management of organizations, directory service for players and allocation of players to roles, and message brokering between roles and players. The proposed framework makes developers to be able to develop highly adaptive distributed systems in the ubiquitous environment.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.342-349
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• 2017

The purpose of this study is to empirically analyze factors which influence social and economic performance of social enterprises, and to examine the correlation of factors affecting social and economic performance. This study was conducted following the hypothesis that the organizational characteristics(organizational type, certification type, certification year, social service supply type, and external grants) of social enterprises affect social and economic performance, and that significant correlation exists between social and economic performance. This study collected the disclosure materials of 219 social enterprises certified between 2007- 2014 from the directory of the Korean Social Enterprise Promotion Agency. The study results are as follows: First, organizational characteristics affect social performance(i.e. jobs for the vulnerable classes). In addition, certification year and external grants had a positive effect on social performance. Second, the organizational characteristics affect the economic performance(i.e. sales), and certification year and external grants had a positive effect on economic performance. However, organizational type had a negative effect on the economic performance(i.e. sales). Third, analysis found a positive correlation of factors affecting social and economic performance. This study suggests the need to diversify support policies according to the number of authentication years in order to promote self-reliance and sustainability by maximizing the social and economic performance of social enterprises.

• Korean Journal of Social Welfare
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• v.35
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• pp.399-426
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• 1998

This article describers the field testing of the task-centered case management model for practice with the elderly clients in the community. Six social workers in three community center applied task centered. model to 12 elderly in community. The model tested in the field trial led to positive results. The results of task completion and problem change indicate that including elderly clients in all steps from identifying problems to suggesting and implementing tasks are important. Target problems and tasks which clients indicate gained high accomplishment. Task-centered interventions provided an intensive period of service that helped clients work on immediate problems. Moreover, they helped clients actively participate in decision making processes and in problem solving activities. Although the task centered approach is a short tenn intervention, the analysis of the field trial suggests that it can be integrated with an approach that is a long tenn in nature through re contract for different problems or unresolved problems. Several suggestion can be made to apply task-centered model for elderly in Korea. First, since one social worker handles over 60 cases, this approach can be used more effectively for new case or the elderly who needs intensive help. Second, preparing and sharing contract with client should be encouraged to help both client and social workers. Also until the social workers are familiar with this approach, there should be an intensive supervision to monitor their activities. Third, it is important to make task planner for Social workers who is working with elderly in community. Task planner is the guide line books to show steps to solve similar problems. Fourth, more efforts should be made to make resource directory in the community as well as in Korea. Fifth, case managers who handle family problems and other personal conflicts should be more trained to be confident to deal with these problems.

• Journal of KIISE:Computing Practices and Letters
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• v.12 no.1
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• pp.1-8
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• 2006

Since most CAD tool companies are carrying out very expensive license policies, designers are sharing CAD tools with a limited number of licenses within a design working or research group. It is important to share and use them efficiently, because CAD tool licenses are very valuable resources. Designers should know CAD tool license information such as available number of licenses, types, and configuration methods to use CAD tools properly in their group. Usually, this information is provided by managers who administrate CAD tool license servers in the specific design group. In the previous CAD tool licenses sharing methods, designers have to get CAD tool license information manually and setup the environments with their own hands, If a new designer comes into the design working group, the designer wastes unnecessary time and effort due to these manual processes. As a result, designer's productivity and utilization of CAD tools will decrease. Besides, managers also waste their time and effort, since they should provide CAD tool license information manually to each desiEner. In this paper, we present a more efficient scheme to share CAD tool licenses based on directory service. The proposed method automates not only the communication processes between managers and designers, but also the license configuration steps. We expect this scheme will reduce time and effort of designers and managers as well as enhance the utilization of CAD tools.