• 제목/요약/키워드: IT Manager

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Adaptive Network Monitoring Strategy for SNMP-Based Network Management (SNMP 기반 네트워크관리를 위한 적응형 네트워크 모니터링 방법)

  • Cheon, Jin-young;Cheong, Jin-ha;Yoon, Wan-oh;Park, Sang-bang
    • The Journal of Korean Institute of Communications and Information Sciences
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    • 제27권12C호
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    • pp.1265-1275
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    • 2002
  • In the network management system, there are two approaches; the centralized approach based on SNMP and the distributed approach based on mobile agent. Some information changes with time and the manager needs to monitor its value in real time. In such a case, the polling is generally used in SNMP because the manager can query agents periodically. However, the polling scheme needs both request and response messages for management information every time, which results in network traffic increase. In this paper, we suggest an adaptive network monitoring method to reduce the network traffic for SNMP-based network management. In the proposed strategy, each agent first decides its on monitoring period. Then, the manager collects them and approves each agent's period without modification or adjusts it based on the total traffic generated by monitoring messages. After receiving response message containing monitoring period from the manager, each agent sends management information periodically without the request of manager. To evaluate performance of the proposed method, we implemented it and compared the network traffic and monitoring quality of the proposed scheme with the general polling method.

Influence of Nursing Manager's Followership of Nurses' Perceptions on Job Satisfaction of Nurse : Focus on the control effect of Empowerment (간호사가 인식한 간호관리자의 팔로워십이 간호사의 직무만족에 미치는 영향: 임파워먼트 조절효과 중심으로)

  • Hwang, Eun Jeong;Moon, Sook Ja
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제20권7호
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    • pp.93-101
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    • 2019
  • The purpose of this study is to identify the control effect of empowerment from the effect to the task satisfaction of the nursing staff of the manager of followership, to study the relationship between the followership of nursing manager, task-satisfaction and empowerment that the nurse recognized. The data collection was conducted for nurses working at four general hospitals with 500 beds or more in Jeollanam-do from March 2 to March 17, 2019. The data were analyzed with the general characteristics of the subjects, and the degree of measurement variables were determined by frequency analysis and technical statistical analysis. The differences in the relevant factors according to the general characteristics were analyzed by t-test and ANOVA, and the correlation and multicollinearity among the measurement variables were analyzed as Pearson's correlation coefficiency, and Moderator regression analysis was performed to verify the adjustment effect of the empowerment. The results of the study showed significant results nursing managers' followership, empowerment and job satisfaction by the educational level. In addition, difference from work experience has shown statistically significant differences in job satisfaction. It has been shown that there is a static correlation between the followership of nursing manager that the subject recognized, empowerment and task satisfaction, the influence between followership and job satisfaction has been found to act as adjustment variables on empowerment. The conclusion of this study is meaningful in that it has verified its influence by applying recently emerging followership to nursing field. From now on, extensive research is important for the members to develop the leadership of members and followership.

A Study on the Selection of Manager and Performance Evaluation in Management Models for Profitable Structure of Eco Pastoral System in Alpine Grassland (방목생태축산의 흑자수익 구조를 위한 경영관리모델별 경영자 선발과 업적평가에 대한 연구)

  • In Ho Choi;Jae Seong Choi;Ji Yung Kim;Kyung Il Sung;Byong Wan Kim
    • Journal of The Korean Society of Grassland and Forage Science
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    • 제43권4호
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    • pp.248-256
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    • 2023
  • As a means to activate eco pastoral system in alpine grassland, the government can consider public pastures, which are currently unused, to scale them up into public ranches. Depending on ownership and operation, four management models proposed as follows: 1) Government-Owned and Operated with Balanced Profit and Loss 2) Government-Owned and Operated with Revenue Generation 3) Government-Owned but Privately Operated by Outsourced to Professional Manager 4) Full Privatization (Ownership and Operation by Private Individuals). The study outlined above proposes four management models for the activation of eco pastoral system in alpine grassland. It also suggests methods for the selection and performance evaluation of manager to establish a profitable structure. Additionally, the research provides management methods for the conservation of grazing ecology in pastoral ecosystems. Particularly, the adaptation of tools commonly used in South Korean business sector for the selection and performance evaluation of manager within the system of the proposed management models. This aspect is deemed valuable as it aligns these tools with the specific characteristics of eco pastoral system in alpine grassland, contributing not only to the effective implementation of the models but also to the enhancement of the revenue structure.

Design and Implementation of an Index Manager for a Main Memory DBMS (주기억장치 DBMS를 위한 인덱스 관리자의 설계 및 구현)

  • Kim, Sang-Wook;Yeom, Sang-Min;Kim, Yun-Ho;Lee, Seung-Sun;Choi, Wan
    • The Journal of Korean Institute of Communications and Information Sciences
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    • 제25권4B호
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    • pp.661-674
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    • 2000
  • The main memory DBMS(MMDBMS) efficiently supports various database applications that require high performance since it employs main memory rather than disk as a primary storage. In this paper, we discuss theexperiences obtained in developing the index manager of the Tachyon, a next-generation MMDBMS. The indexmanager is an essential sub-component of the DBMS used to speed up the retrieval of objects from a largevolume of a database in response to a certain search condition. Previous research efforts on indexing proposed various index structures. However, they hardly dealt with the practical issues occured in implementating an index manager on a target DBMS. In this paper, we touch these issues and present our experiences in developing the index manager on the Tachyon as solutions. The main issues touched are (1) compact representation of an indexentry, (2) support of variable-length keys, (3) support of multiple-attribute keys, (4) support of duplicated keys,(5) definition of external APls, (6) concurrency control, and (7) backup and recovery. We believe that ourcontribution would help MMDBMS developers highly reduce their trial-and-errors.

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Remote Power Management System for Large Scale PC Network (대규모 PC 네트워크의 원격 전원 관리 시스템)

  • Hwang, Kitae;Lee, Jae Moon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • 제15권4호
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    • pp.71-78
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    • 2015
  • Since most education organizations such as Universities have a plenty of PCs, much electric power can be wasted if their power states are not managed properly. This paper introduces the RPM(Remote Power Management) software system implemented to reduce a waste of PC power in Universities. The System manager can monitor power state of all PCs in a University and turn off PCs or change power states of PCs to low power states. The RPM consists of three software modules. First, Power Controller, which is installed in each user PC, saves the power by changing low power state by utilizing low power algorithm proposed in this paper. Also it reports power state of its PC to Power Server on the state changed. Second, Power Server module gathers power state information of all PCs, stores them in a DB, and sends all or some parts of the information to Power Viewer whenever the manager asks. The manager can turn off or change a certain PC to low power state. We evaluated the performance of power saving for the RPM and the result showed achievement of 40% power saving.

Impact of Business Incubator's Support Service and Manager's Capabilities on the Start-Up Performance (창업보육센터 지원서비스와 매니저 역량이 입주기업의 성과에 미치는 영향에 관한 연구)

  • Bae, Young Im
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • 제11권2호
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    • pp.145-155
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    • 2016
  • This article investigates the impact of business incubator's support service and manager's capabilities on the start-up economic performance. BI's support services consist of physical infra, management/legal service, networking service, financial service, technical service, and education/training service. The results show that most BI's support services(except education/training service) have a positive effect on the start-up economic performance. This study also analyzes the gap between the importance and the satisfaction of BI's services. The results show that the satisfaction of BI's services is much lower than the importance. It can be explained that the start-ups' expectations are not able to meet. In conclusion, BI's services have a major impact on the start-up economic performance, but actually they didn't meet the expectation of the start-ups. In the future, the quality level of BI's services and manager's capabilities needs to be improved. The improvement will have a positive effect on the survival and growth of the startups.

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A Study on the Management System of Show Cave for Sustainable Tourism (지속가능한 관광을 위한 동굴관광자원의 관리체계에 대한 연구)

  • Hong, Choong-Real;Kim, Won-Jin
    • Journal of the Speleological Society of Korea
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    • 제64호
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    • pp.27-36
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    • 2004
  • Caves have the values of learning sites and tourism resources. But show caves are at risk of being ravaged, destroyed, and Polluted. The Purpose of this study is to analyse the management condition and the problems of the show caves, and to suggest the alternative improvement for the cave management. The research of the Cultual Properties Administration revealed many Problems including the management system, safety diagnosis, the demand for comprehensive academic research and so on. An analyzing of the questionnaire about cave manager demanded to reform working conditions, tourist education, an amendment of the Cultural Properties Protection Act, expert education for cave manager. In conclusion, It is necessary that construct the mutual cooperation system of an administrative organization, cave manager and tourist, and the Cave Management information System to manage database of cave environment.

An XML Schema Manager based on the User-defined XML View (사용자 정의 XML 뷰 기반의 XML 스키마 관리 시스템)

  • Jung, Chai-Young;Kim, Young-Ok;Lee, Mi-Young;Kang, Hyun-Syug;Bae, Jong-Min
    • The KIPS Transactions:PartD
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    • 제10D권3호
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    • pp.367-374
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    • 2003
  • A mediator-wrapper system, which is one of integration methods of heterogeneous databases, preserves a virtual integrated view rather than physical movement of the contents of each database. In order for a mediator to preserve a virtual integrated view, it requires the schema manager of the wrapper which communicates with local databases. This paper presents a schema manager of a wrapper that provides a mediator with XML schema which is generated from relational database schema. The XML schema manager supports a user-defined XML view. We present the view tree model which is used for materializing the use-defined XML view to generate XML schema, and the conversion algorithm based on the proposed view tree model. This model is can be uniformly applied to all schema managers of heterogeneous information sources.

Smart Home Personalization Service based on Context Information using Speech (음성인식을 이용한 상황정보 기반의 스마트 흠 개인화 서비스)

  • Kim, Jong-Hun;Song, Chang-Woo;Kim, Ju-Hyun;Chung, Kyung-Yong;Rim, Kee-Wook;Lee, Jung-Hyun
    • The Journal of the Korea Contents Association
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    • 제9권11호
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    • pp.80-89
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    • 2009
  • The importance of personalized services has been attracted in smart home environments according to the development of ubiquitous computering. In this paper, we proposed the smart home personalized service system based on context information using the speech recognition. The proposed service consists of an OSGi framework based service mobile manager, service manager, voice recognition manager, and location manager. Also, this study defines the smart home space and configures the commands of units, sensor information, and user information that are largely used in the defined space as context information. In particular, this service identifies users who exist in the same space that shows a difficulty in the identification using RFID through the training model and pattern matching in voice recognition and supports the personalized service of smart home applications. In the results of the experiment, it was verified that the OSGi based automated and personalized service can be achieved through verifying users in the same space.

A Study on human resources management for kitchen of hotel (호텔 주방조직의 인적자원관리에 관한 연구)

  • 진양호
    • Culinary science and hospitality research
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    • 제1권
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    • pp.5-23
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    • 1995
  • Management of kitchen is consist of various management factor, for instance, physical resources, financial resources, information resources, and human resources. Because these kind of resources determine efficiency of kitchen management, human resource management is important aspect of kitchen operation. In this paper of view, recently human resource management has been considered by kitchen manager. Kitchen Managers who are interested in human resource, focus on efficiency. Also human resource management underlined not only efficiency, but interrelationship of emplyee. Today, considering with the environment of management, operation of kitchen is important section on hotel management in relation to the profit of it. In the future, therefore kitchen will be strategic profit center on hotels. According to in this tendency, as profit business center kitchen assumed a aspect of efficiency mechanism. This thesis aimcs to point out the actual status of human resource management in the hotels, and suggests the improvement there of by analyzing the system. This research is organized into five sections. section one introduces its objectives. scope and mothodology. Section two provides the theory of human resource management on the kitchen of hotels. And section these analyzed about the factors of human resource management. Section four, suggests the alternatives of the improvement on human resource management, section Five describes the conclusion of this thesis. Today, importance of human resource is viewed multipoint aspects in relation to efficiency of organization and interrelationship of employee, especially the arrangement of human resource is fairly handle and allocation of the human resource and personal appraisal. On the other hand, human resource managers have to be responsible for the cost control and customer's attraction by developing human resources. In order to advance human resource management on kitchen of hotels, following alternatives are considered with efficiency of management and interrelation of employee. The first, the manager of hotels has to consider the passive support of development of human resource. The second, the manager of hotels should develop the various training program for the extonsive ability of employee. The third, in order to improvement of human resource management, manager should establish the system for human resource management view of efficiency and employee's interrelationship.

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