• 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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Distributed System Architecture Modeling of a Performance Monitoring and Reporting Tool (분산 시스템의 성능 모니터링과 레포팅 툴의 아키텍처 모델링)

  • Kim, Ki;Choi, Eun-Mi
    • Journal of the Korea Society for Simulation
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    • v.12 no.3
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    • pp.69-81
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    • 2003
  • To manage a cluster of distributed server systems, a number of management aspects should be considered in terms of configuration management, fault management, performance management, and user management. System performance monitoring and reporting take an important role for performance and fault management. In this paper, we present distributed system architecture modeling of a performance monitoring and reporting tool. Modeling architecture of four subsystems are introduced: node agent, data collection, performance management & report, and DB schema. The performance-related information collected from distributed servers are categorized into performance counters, event data for system status changes, service quality, and system configuration data. In order to analyze those performance information, we use a number of ways to evaluate data corelation. By using some results from a real site of a company and from simulation of artificial workload, we show the example of performance collection and analysis. Since our report tool detects system fault or node component failure and analyzes performances through resource usage and service quality, we are able to provide information for server load balancing, in short term view, and the cause of system faults and decision for system scale-out and scale-up, in long term view.

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Performance Requirement of Cast-in-place Concrete with Sandwich Insulation (타설형 콘크리트 중단열 벽체의 요구성능 분석)

  • Park, Jun-Ho;Yu, Jung-Ho
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.10-11
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    • 2014
  • Energy load of building affected by insulation performance of building's exterior. and insulation system can be classify interior insulation, exterior insulation, sandwich insulation according to install place of insulation. but within interior insulation system, corner wall and the cross outer wall-slab insulation part may occur thermal bridges. And then, within exterior insulation system is more superior insulation performance than interior insulation, but it has difficult to apply, easily broken at high building because of strong wind load. And also difficult to maintenance exterior insulation system. So, in this study, to found requirement performance of cast-in-place sandwich insulation system that is superior insulation performance and easy construction and maintenance. requirement performance of cast-in-place sandwich insulation system is 1) To avoid thermal bridges in the insulation performance, 2) Both sides concrete wall can be composite action in the structural performance. Because of this study, can develops cast-in-place sandwich insulation system and this insulation system contribute to improve insulation performance of apartment-house and high building.

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A design on optimal PD control system that has the robust performance (강인한 성능을 가지는 최적 PD 제어 시스템 설계)

  • Kim, Dong-Wan;Hwang, Hyeon-Jun
    • Journal of Institute of Control, Robotics and Systems
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    • v.5 no.6
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    • pp.656-666
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    • 1999
  • In this paper, we design the optimal PD control system which has the robust performance. This PD control system is designed by applying genetic algorithm (GA) to the determination of proportional gain KP and derivative gain KD that are given by PD servo controller, to make the output of plant follow the output of reference model optimally. These proportional and derivatibe gains are simultaneously optimized in the search domain guaranteeing the robust performance of system. And, this PD control system is compared with $\mu$ -synthesis control system for the robust performance. The PD control system designed by the proposed method has not only the robust performance but also the better command tracking performance than that of the $\mu$ -synthesis control system. The effectiveness of this control system is verified by computer simulation.

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Development of Performance Analysis System (NOPAS) for Turbine Cycle of Nuclear Power Plant

  • Kim, Seong-Kun;Park, Kwang-Hee
    • Nuclear Engineering and Technology
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    • v.33 no.1
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    • pp.34-45
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    • 2001
  • We have needs to develop a performance analysis system that can be used in domestic nuclear power plants to determine performance status of turbine cycle. We developed new NOPAS system to aid performance analysis of turbine cycle . Procedures of performance calculation are improved using several adaptations from standard calculation algorithms based on ASME (American Society of Mechanical Engineers) PTC (Performance Test Code). Robustness in the performance analysis is increased by verification & validation scheme for measured input data. The system also provides useful aids for performance analysis such as graphic heat balance of turbine cycle and components, turbine expansion lines, automatic generation of analysis reports.

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IS Quality, Practical Use and Performance in Public Sector

  • Lee, Young-Hee;Kim, Gi-Baek;Lee, Jun-Young;Lee, Jung-Woo
    • 한국경영정보학회:학술대회논문집
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    • pp.851-856
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    • 2007
  • Continuously monitoring and improving information system (IS) performance is a major concern in organizations. Thanks to invisible characteristics of IS performance, this is still enduring research question. The purpose of this study is to examine and analyze factors influencing IS Performance in public sector. Influencing factors of IS performance include IS quality such as System Quality, Information Quality and IS Use. The data for analysis was collected from local official in Korea. We used PLS 3.00 Version for an analysis. Analysis revealed that Information Quality has directly influenced IS Use. But there were not Significant in relations between System Quality and IS Performance, System Quality and IS Use, System Quality and IS Performance, and IS Use and IS Performance.

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A Study on the Development of Performance Audit Model Using the System Dynamics (시스템다이내믹스 기법을 이용한 공공정책 성과감사 모형개발에 관한 연구)

  • Choi, Nam-Hee
    • Korean System Dynamics Review
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    • v.12 no.3
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    • pp.25-46
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    • 2011
  • Recently, performance auditing system of governmen is carried out as most promising framework of government audit. Performance audit by the Board of Audit and Inspection of Korea involves assessing the causes and effects of government policies, programs, and Institutions with the criteria of economy, efficiency, effectiveness. Performance auditing will contribute to strengthening the values of objective assessments of whether public resources are responsibly and effectively managed to achieve intended results. Nevertheless, there seems to be a problems appears in implementation of audit. That is the problems of tendency return to legitimacy audit which is result from the lack of strong approach and methodology. So, this study purpose to developing stronger audit concepts and methods that add to the process and framework of traditional performance auditing system. First, this study evaluates the limitation of current performance auditing system with the perspective of systems thinking. Second, this study analyzes the process and method of current system and develop the conceptual model of the Dynamics Audit System using the system dynamics methodology, which focused on the appropriate auditing process and framework.

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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.

A Case on the Evaluation of the Information System Project to Enhance the Performance of DIMS(Defense Material Information System) (국방물자정보시스템 성능개선 사업평가에 대한 사례)

  • Cho, Sung-Rim;Lim, Gyoo-Gun;Lee, Dae-Chul
    • Journal of Information Technology Services
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    • v.11 no.1
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    • pp.109-123
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    • 2012
  • There are many evaluation models to measure the informatization level of an organization and information system project in the ministry of National Defense of Korea. A information system has to keep up with the environment change as well as the advanced recent information technology (IT). Therefore, the evaluation of an information system project to enhance the performance of the information system should be different from the existing evaluation methods. This study suggests an evaluation case of information system projects to enhance the performance of an information system. In order to achieve the objective of this study, the following steps are taken. First, it reviews the background and the scope of the project to enhance the performance of the Defense Material Information System (DMIS). And it sets up the evaluation logic and develops performance indexes. Then it applies these newly developed performance indexes to the information system project and measures the performance. From this study, we found that both the diffusion and the experience accumulation by its continuous use are significant factors in such evaluations.

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.