• Title/Summary/Keyword: System performance

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Mediating Effect of Change Management Activity on the Relationship between the Role of Participants of ERP Implementation and System Performance (ERP 구현의 참여자 역할과 시스템 성과 간의 관계에 있어 변화관리 활동의 매개 효과에 관한 연구)

  • Chang, Hwal-Sik;Oh, Jeong-Eun;Choi, Yoo-Jung;Han, Jung-Hee
    • The Journal of Information Systems
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    • v.16 no.4
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    • pp.75-106
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    • 2007
  • The purpose of this research is to identify a mediating effect of change management activity(CMA) on the relationships between the role of participants of ERP implementation and system performance. In this paper the role of participants are composed of top's management, user's participation, project manager's skill. Also this research organized ERP system performance into the three dimensions(adaptation to the end-user's ERP system, system usage, individual's performance). The major results of this research can be summarized as follow; project manager's role, top management's involvement, and users' participation in ERP project directly affect CMA of system implementation process and have influence system performance through CMA too. CMA also has a positive effect on a series of system performance, that is, adaptation to the end-user's ERP system, system usage, and individual's performance. In conclusion, the role of participants have an considerable influence upon system performance through CMA. This research makes certain that a mediating effect of CMA between the role of participants and system performance exists. Therefore, the companies implementing ERP must consider CMA.

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An Analysis of Multi-processor System Performance Depending on the Input/Output Types (입출력 형태에 따른 다중처리기 시스템의 성능 분석)

  • Moon, Wonsik
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.12 no.4
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    • pp.71-79
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    • 2016
  • This study proposes a performance model of a shared bus multi-processor system and analyzes the effect of input/output types on system performance and overload of shared resources. This system performance model reflects the memory reference time in relation to the effect of input/output types on shared resources and the input/output processing time in relation to the input/output processor, disk buffer, and device standby places. In addition, it demonstrates the contribution of input/output types to system performance for comprehensive analysis of system performance. As the concept of workload in the probability theory and the presented model are utilized, the result of operating and analyzing the model in various conditions of processor capability, cache miss ratio, page fault ratio, disk buffer hit ratio (input/output processor and controller), memory access time, and input/output block size. A simulation is conducted to verify the analysis result.

The Effects of Interaction between the IT Activity and the Organizational Strategy on the System Performance (정보기술활동과 조직전략의 대응이 성과에 미치는 영향)

  • Han, Gyeong-Il
    • Journal of Digital Convergence
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    • v.4 no.2
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    • pp.75-85
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    • 2006
  • The purpose of this study is to confirm whether the IT activity and organizational strategy makes a significant influence on the system performance. IT activity is defined as a system development, system operation and system management. Cost leadership and Differentiation were used as a strategic type. Field research was employed to empirically investigate the relationship among the variables. The finding of the study can be summarized as follows. IT activity and strategic type are not enough to explain the system performance.

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The Effects of User attitude and Expectation on the System performance according to Management level of Information System (시스템의 관리수준에 따라 태도와 기대가 성과에 미치는 영향)

  • Han, Kyung-Il
    • Journal of Digital Convergence
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    • v.5 no.1
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    • pp.91-100
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    • 2007
  • The purpose of this study is to confirm whether user attitude and expectation make a significant difference on the system performance according to management level of IS. The management level is defined as a evaluation of IS and project management. Field research was employed to empirically investigate the relationship among the variables. The finding of the study can be summarized as follows. The positive attitude has a favorable effect on the system performance. But high expectation shows low performance under the strict evaluation.

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The Effects of the Interdependency and the System Development Process on the System Performance (상호의존성과 정보시스템 개발과정이 시스템성과에 미치는 영향)

  • Han, Gyeong-Il
    • Journal of Digital Convergence
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    • v.4 no.1
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    • pp.83-92
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    • 2006
  • The purpose of this study is to confirm whether the task and system development process makes a significant influence on the system performance. The task is defined as a interdependency and system development process is defined as analysis, user participation and executive support. Field research was employed to empirically investigate the relationship among the variables. The finding of the study can be summarized as follows. The strict analysis under the task of high interdependency has a significant effect on the system performance. And high executive support is needed for the system performance under any level of interdependency.

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An Exploratory Study on Causal Relationship between Perceptual Level of Employees and Information System Performance : Case of Public Side Information System Use (조직구성원의 인식 수준이 정보시스템 활용 성과에 미치는 영향에 관한 탐색적 연구 : 공공부문 정보시스템 사례를 중심으로)

  • Park, Ki-Ho
    • Journal of Information Technology Services
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    • v.7 no.2
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    • pp.165-180
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    • 2008
  • Although a number of studies concerning the performance of information system (hereafter, IS) have been performed, those in governmental organizations have rarely conducted. Moreover, there were not many that the perceptual level of individuals might have influence on the information system performance actually. This study tried to investigate the causal relationship between personal perceptual level on the operation and performance of IS, as a result of project for public innovation which deployed in a governmental organization. The targeted IS is for task management. Our survey's respondents are real users in a governmental organization. As a result of statistical analysis, the affecting factors, the perceptual level of individuals such as task process standardization, training and system education, and the active participation of manager positively affected system performance. The result of study can provide some implications to the governmental organizations who want to improve the system performance and efficiently operate their own IS for achieving the organizational goals.

An Exploratory Case Study on the Factors Affecting the Knowledge Management System Performance (지식관리시스템 성과에 영향을 미치는 요인에 관한 탐색적 사례 연구)

  • 김주희;유성호;김영걸
    • Korean Management Science Review
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    • v.20 no.1
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    • pp.1-23
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    • 2003
  • Knowledge Management System is defined as an Information system to support the integrated knowledge management process for maximizing value of the knowledge assets in organizations. From that point of view, the system performance - the usage level of the system and user satisfaction - can be an available measure of the knowledge management system success. Many previous research were focused on the application of a new technological component for knowledge management processes or the construction of the overall system architecture in spite of the importance of the system performance. The purpose of this study is to Identify the factors affecting the knowledge management system performance. To do this, we conducted an exploratory case studies of eight companies. We applied theories of information system success to knowledge management system and investigated some specific strategic components as additional affecting factors. Finally, we proposed research model and ex propositions regarding the factors affecting the knowledge management system performance. The implication of the findings and future research directions were discussed.

The Effects of the Task and the System Development Process on the System Performance (과업과 정보시스템 개발과정이 시스템성과에 미치는 영향)

  • Han, Gyeong-Il
    • 한국디지털정책학회:학술대회논문집
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    • pp.421-429
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    • 2006
  • The purpose of this study is to confirm whether the task and system development process makes a significant influence on the system performance. The task is defined as a interdependency and system development process is defined as analysis, user participation and executive support. Field research was employed to empirically investigate the relationship among the variables. The finding of the study can be summarized as follows. The strict analysis under the task of high interdependency has a significant effect on the system performance. And high executive support is needed for the system performance under any level of interdependency.

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Performance Improvement of Air Conditioner Network System using Wireless Sensors Through System Performance Index and Dynamic Power Distribution Control (시스템 성능 지수 및 동적 전력분산 제어를 통한 무선센서를 이용한 에어컨 네트워크 시스템의 성능 개선)

  • Choi, Ho-seek;Kwon, Woo-hyen;Yoon, Byung-keun
    • Journal of Sensor Science and Technology
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    • v.28 no.1
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    • pp.64-70
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    • 2019
  • Wireless sensors have been developed in numerous ways for enhancing the convenience of installation, management and maintenance of sensors. Energy harvesting wireless sensors, which can collect energy from the external environment for permanent usage without the need of recharging and exchanging batteries, have been developed and employed used in Internet of Things and at various industrial sites. Energy harvesting wireless sensors are significantly affected by the sensor lifespan to sudden variation in the external environment. Furthermore, reduction in the sensor operating timespan can greatly affect the characteristics of the devices connected through a network. In this paper, a system performance index is proposed that can comprehensively evaluate the lifespan of a solar cell wireless sensor, determine the characteristics of devices connected to the associated network, and recommend dynamic power distribution control for improving the system performance index. Improvement in the system performance index was verified by applying the proposed dynamic power distribution control to an air conditioner network system using a solar cell wireless sensor. Obtained results corroborate that the dynamic power distribution control can extend the lifespan of the incorporated wireless sensor and reduce the air conditioner's power consumption.

An Analysis of Effect of a Fit Between Success Factors of ERP Implementation and Information Characteristics of ERP System on System Performance (ERP도입의 성공요인과 시스템 정보특성간의 적합성이 시스템 성과에 미치는 영향분석)

  • Lim, Kyu-Chan
    • The Journal of the Korea Contents Association
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    • v.6 no.2
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    • pp.136-145
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    • 2006
  • To achieve this study, this study divide success factors of ERP implementation into organizational, environmental and information and group system information characteristics into form, content, source and supply frequency of information and is to verify an effect of two factors on system performance(user satisfaction). After selecting 250 SMBs in sample, this study use 79 questionaires for analysis. And all SMBs which was sampled in this study are manufacturing companies and don't consider respondent's position. The results of this study are as follows. First, there is a positive effect of a fit between organizational factors and system information characteristics on system performance. Second, there is a positive effect of a fit between environmental factors and system information characteristics on system performance. and third, there is positive effect of a fit between information factors and system information characteristics on system performance.

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