• Title, Summary, Keyword: performance

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공급사슬내 협업환경과 기업의 직.간접 성과

  • O, Se-Gu
    • Proceedings of the Korea Database Society Conference
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    • pp.235-247
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    • 2010
  • Introduction of ICE(Integrated Collaboration Environment) has a great effect on corporate performance. In particular, it is expected that information sharing and collaboration among transaction partners will be an important factor which mediates ICE and its performance. Under such a background, this research intends to identify the influence of ICE by manufacturing industry on corporate performance through role of the parameter of information sharing and collaboration. The result of this research may be summed up as follows: ICE promotes information sharing and collaboration among enterprises, it accelerates integration of supply chain network among enterprises and cooperation. In particular, ICE has a great effect on information sharing. And information sharing has a direct effect on collaboration and performance. However, when we classify corporate performance into the "performance due to introduction", which is direct performance, and the "overall performance", which is indirect performance, the result of this research is as follows: information sharing has a great effect on the performance due to introduction, but does not have a meaningful effect on indirect performance. On the other hand, collaboration does not have any effect on the performance due to introduction, but has a meaningful effect on the overall performance, which is indirect performance. It is necessary to study and analyze additional this result in future.

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Condition Parameter-based On-line Performance Reliability (상태 파라메터 기반의 온라인 성능 신뢰도)

  • Kim, Yon-Soo;Chung, Young-Bae
    • Journal of the Society of Korea Industrial and Systems Engineering
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    • v.30 no.3
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    • pp.103-108
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    • 2007
  • This paper presents the conceptual framework for estimating and predicting system's susceptibility to failure as function of condition parameter value which is representing the current status of performance measure using on-line performance reliability. The performance of such system depends on one parameter with a probability distribution that degrades with time gracefully. Performance reliability represents the probability that physical performance will remain satisfactory over a finite period of time or usage cycles in the future. An empirical physical performance function is constructed to incorporate explanatory variables (operating and environmental conditions) over a time or usage dimension. This function enables one to model device performance and the associated classical reliability measures simultaneously, in the performance domain and time domain. The conditional performance reliability structure developed represents a tool to predict system performance over time or usage for next usage period. By enabling such a framework, it can bring us more efficient planning and execution in system's operation control as well as maintenance to reduce costs and/or increase profits.

Performance Comparison Between Routing Protocols Based on the Correlation Analysis of Performance Metrics for AODV Routing Protocol (AODV 라우팅 프로토콜의 성능 매트릭들 간의 상관관계 분석에 기반한 라우팅 프로토콜들 간의 성능 비교)

  • Lee, Yun-Kyung;Kim, Ju-Gyun
    • Journal of Information Technology Services
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    • v.12 no.4
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    • pp.349-367
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    • 2013
  • In MANET, the AODV routing protocol with on-demand method has a problem in large control packet overhead. In order to improve this, we first need a comprehensive analysis of correlation between performance metrics and factors affecting the performance of AODV. Selected parameters based on this analysis make it enable to be a more accurate and fair performance analysis, as well as to reduce the time and effort when constructing a scenario for performance analysis. In this paper, various scenarios are configured to apply AODV by varying the values of factors affecting the performance with network simulator QualNet 5.0, and then the results are analysed using performance metrics proposed by IETF MANET working group. This paper also founds a correlation between performance metrics and factors affecting the performance for AODV routing protocol, choosing the values of factors that represent many of the most maximum and minimum values of each performance metrics, and proposes optimal simulation parameters for a more accurate performance evaluation of routing protocols with minimal scenario in experiments. Next, performance comparison of AODV, DSR and DYMO routing protocols based on the proposed simulation parameters is shown which provides a comparative analysis on the performance of on-demand routing protocols. Results of this paper could be very useful for the researcher or service provider who wants to find nice simulation environment or select a proper routing protocol.

Process Performance Feedback and Quality Goal Setting as Sources of Process Restrictiveness and Behavior Guidance in Electronic Brainstorming

  • Jung, Joung-Ho
    • The Journal of Information Systems
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    • v.26 no.4
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    • pp.1-15
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    • 2017
  • Purpose Through the provision of real time performance information about who is contributing and who is not in Electronic Brainstorming, prior studies evidenced a significant performance gain. However, it has been observed that the quantity-based performance feedback alone does not have enough restrictiveness to guide the performance behavior throughout the idea generation session. We included the notion of goal setting into the process performance feedback mechanism in an effort to regulate performance behavior and to better understand why individuals in Electronic Brainstorming are not obtaining enough stimulation benefits in the group interaction process. Design/methodology/approach We had developed real-time visual process performance feedback and modified to include goal setting. This mechanism visually displays individuals' performances two-dimensionally (quality for each idea vertically and quantity of ideas horizontally along with their goals). As individuals' contributions accumulate, the mechanism reveals performance histories by connecting the sequence of ideas in a time-series format, telling stories of individuals' performances. Then, we compared the performance outcome from this study with the outcomes from two prior studies (i.e., Jung et al., 2010 and Jung, 2014). Findings The results showed that the inclusion of goal setting into the process performance feedback solved the issue in the previous study. That was the lower than expected magnitude of performance enhancement of process performance feedback when compared to that of quantity-based feedback. It appears that goals as a motivational technique provide standards for systematic self-evaluation, serving as a cue to regulate performance behavior by strengthening the linkage between effort and performance. Thus, goals seem to set up a self-fulfilling prophecy, preconditioning better performance. However, the outcome still showed that its performance magnitude is unsatisfactory because the outcome of this study turned out to be close to the outcome of just quantity-based performance feedback in Jung et al.'s (2010) study.

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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ISSUES IN FORMULATING PERFORMANCE-BASED APPROACHES TO REGULATORY OVERSIGHT OF NUCLEAR POWER PLANTS

  • YOUNGBLOOD R. W.;KIM I. S.
    • Nuclear Engineering and Technology
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    • v.37 no.3
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    • pp.231-244
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    • 2005
  • In recent decades, significant effort has led to risk-informed improvements to regulation. Performance-based approaches also promise significant gains in efficiency (level of safety versus effort). However, significant work remains to be done before performance-based approaches realize their full potential in regulation of nuclear power plants. This paper reviews key concepts related to performance-based regulation, discusses some applications of performance-based approaches, and identifies issues that still need to be addressed. Realistic, experience-based models of licensee performance are still lacking; this makes it difficult to assess the prospective effectiveness of any given regulatory approach, in light of the performance issues that it will actually face. Also, while 'compliance' is an intuitively straightforward concept to apply within a prescriptive implementation, its analog in a performance-based approach remains unclear. An overarching theme of the paper is that formal methods of decision analysis are very helpful in developing appropriate regulatory approaches, especially performance-based ones; this theme is illustrated at several points.

The Effect of Knowledge Activity on Organizational Performance: Focused on Knowledge Creation Activity and Knowledge Sharing Activity (지식활동이 조직성과에 미치는 영향에 관한 연구: 지식창출 활동과 지식공유 활동을 중심으로)

  • Lee, Jung-Ho;Kim, Young-Gul;Kim, Min-Yong
    • Knowledge Management Research
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    • v.7 no.1
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    • pp.13-30
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    • 2006
  • This study aims at exploring the relationships between knowledge activity, knowledge activity performance, and organizational performance. By adopting the balanced scorecard perspective, organizational performance was measured by product/service, customer and internal performances. Using data collected from the 36 Korean firms, this study found that knowledge creation activity was positively and significantly related to the organizational performance such as product/service performance, customer performance and internal performance. We also found that knowledge activity performance such as knowledge quality and user knowledge satisfaction mediated the positive relationship between knowledge sharing activity and internal performance.

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Selecting Optimum Management Practicesin Pre-construction Phase Considering Project Characteristics

  • Cha, Hee-Sung;Kim, Ki-Hyun;Ko, Young-Jin
    • Journal of Construction Engineering and Project Management
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    • v.2 no.1
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    • pp.1-4
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    • 2012
  • The importance of project performance management as an alternative for solving problems is rising, which are followed by the hardships of managing construction project in the construction industry. This research classifies and applies the improvements made by the operator's work, in order to apply factors of success on the construction project, as performance management factors. In addition, in order to predict the results reflecting the project characteristic of performance management factor un-improvable by the operator in the initial stage of construction, the effect of project characteristic to the performance was drawn by performance difficulty. Also, in order to improve the predicted performance, researches on setting valid best practices according to the performance territory through a correlation analysis between the best practices improvable through the operator's work, and the performance was made.

A Study on the Diagnosis of Thermal Performance in the Steam Turbine for Generation (발전용 증기터빈 열성능 진단에 관한 연구)

  • Kim, Kwang-Hong;Hong, Eun-Kee;Hwang, Kwang-Won;Jang, Chul-Ho;Kim, Si-Moon
    • Proceedings of the KSME Conference
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    • pp.3236-3240
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    • 2007
  • This paper describes the results of steam turbine performance tests. The objectives of performance test is to exactly evaluate the degradation(decrease in performance) of the coal-fired steam turbine generator in order to provide plant information to help performance engineers identify problems, improve performance, and make economic decisions about scheduling maintenance and optimizing operation. To achieve these goals, the periodic thermal performance tests have been carried out since the initial operation period, 1997. We made the calculation program and guidelines for the tests and developed the performance index of the turbine cycle on the basis of the ASME PTC. By comparing the performance changes throughout the whole operation period, we confirmed the performance reliabilities of the turbine and its conditions.

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A Study on the Information Technology Performance Evaluation Model (정보기술 성과 평가 모델에 관한 연구)

  • Choi, Gyun-Hyun;Nam, Ji-Young
    • Journal of the Society of Korea Industrial and Systems Engineering
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    • v.28 no.3
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    • pp.121-132
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    • 2005
  • Nowadays, Information Technology(IT) has become one of the most critical managerial decision areas, because its role in the business practice tends to be more important and hence the amount of the investment in growing. Since there is no dominant and promising measure to evaluate the IT performance, the managements have difficulties on the decision process for IT investment. In this paper, we propose an IT performance evaluation model. The proposed model starts with finding the business performance evaluation areas and the corresponding KPIs, and then concentrates on the IT performance evaluation areas corresponding to the business performance evaluation areas. To extract the specific and reliable KPIs for the IT performance measure, we map the business performance evaluation areas into the corresponding IT performance evaluation areas and then combine and adjust these KPIs with the KPIs obtained from the experiential field interview. Finally, We present the complete model which has 11 business performance indices and 48 IT performance indices are completed.