• Title, Summary, Keyword: performance based

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Web-based PBL Performance Assessment Management Model Through the Analysis of the Distance Teacher Training (초등 교원 원격연수의 인식도 분석을 통해 본 웹기반 문제중심 수행평가 운영 모형개발)

  • Kwon, Hyung-Kyu
    • Journal of The Korean Association of Information Education
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    • v.9 no.3
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    • pp.549-560
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    • 2005
  • Web-based distance teacher training should focus on increasing self-directed problem solving skills of trainers by problem-based instruction(PBL). Performance assessment evaluates achievement of learning goals through the practical performance learning to solve problems in the real situation. This study proposes a web-based performance assessment model for the distance teacher training. It reflects fairness and objectiveness issues of performance assessment which elementary teachers are concerned about through the survey on distance teacher training, and relieves instructors from overload of managing and scoring performance tests. The proposed model provides problem-based learning situations, interactions between individuals and groups, and web-based cooperative evaluation and the peer evaluation.

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Group-Performance Based Pay of Publicly Traded Companies and Its Association with Value Added Productivity per Employee

  • Yang, Donghoon
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.7
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    • pp.85-90
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    • 2015
  • This study surveyed 152 publicly traded companies to investigate group-performance based pay practices and its impacts on labor productivity. Compared a benchmark survey from Department of Labor, those companies show higher introduction rates, especially in small-to-medium sized companies. They also tend to pay profit-sharing bonus more in the form of company stocks and differentiate individual bonuses more by department performance than individual performance. The impact of group-performance based pay on labor productivity is positive and statistically significant. Economic value added per person in those companies adopting group-performance based pay tends to be higher and increases with the coverage of employees under the pay plan. It also reveals that the years after the play adoption are negatively associated with labor productivity.

A preliminary case study of resilience and performance of rehabilitated buildings subjected to earthquakes

  • Hadigheh, S. Ali;Mahini, S. Saeed;Setunge, Sujeeva;Mahin, Stephen A.
    • Earthquakes and Structures
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    • v.11 no.6
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    • pp.967-982
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    • 2016
  • Current codes design the buildings based on life safety criteria. In a performance-based design (PBD) approach, decisions are made based on demands, such as target displacement and performance of structure in use. This type of design prevents loss of life but does not limit damages or maintain functionality. As a newly developed method, resilience-based design (RBD) aims to maintain functionality of buildings and provide liveable conditions after strong ground movement. In this paper, the seismic performance of plain and strengthened RC frames (an eight-story and two low-rise) is evaluated. In order to evaluate earthquake performance of the frames, the performance points of the frames are calculated by the capacity spectrum method (CSM) of ATC-40. This method estimates earthquake-induced deformation of an inelastic system using a reduced response spectrum. Finally, the seismic performances of the frames are evaluated and the results are compared with a resilience-based design criterion.

A Technique to Enhance Performance of Log-based Flash Memory File Systems (로그기반 플래시 메모리 파일 시스템 성능 향상 기법)

  • Ryu, Junkil;Park, Chanik
    • IEMEK Journal of Embedded Systems and Applications
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    • v.2 no.3
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    • pp.184-193
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    • 2007
  • Flash memory adoption in the mobile devices is increasing or vanous multimedia services such as audio, videos, and games. Although the traditional research issues such as out-place update, garbage collection, and wear-leveling are important, the performance, memory usage, and fast mount issues of flash memory file system are becoming much more important than ever because flash memory capacity is rapidly increasing. In this paper, we address the problems of the existing log-based flash memory file systems analytically and propose an efficient log-based file system, which produces higher performance, less memory usage and mount time than the existing log-based file systems. Our ideas are applied to a well-known log-based flash memory file system (YAFFS2) and the performance tests are conducted by comparing our prototype with YAFFS2. The experimental results show that our prototype achieves higher performance, less system memory usage, and faster mounting than YAFFS2, which is better than JFFS2.

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Automatic Fire Detector Spacing Calculation for Performance Based Design (성능위주설계를 위한 화재감지기배치의 공학적연구)

  • Park, Dong-Ha
    • Fire Science and Engineering
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    • v.24 no.1
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    • pp.15-23
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    • 2010
  • Placement method for fire detectors prescribed in current fire safety regulation is just about placing a prescribed number of detectors according to the areas. However, this regulation has no scientific basis and standards from foreign countries are just introduced and fire detectors are installed complying with them. There are two standards in designing fire protection systems; Prescriptive-Based Design that follows stipulated regulations like fire safety standards and Performance-Based Design based on engineering knowledge such as fire dynamics, structural dynamics, mechanics of materials, fluid mechanics, and thermo dynamics. Recently, Fire Protection System Construction Business Act was revised so that fire protection systems can be designed using Performance-Based Design method ('05. 8. 4), though the method has not activated until now. In addition, the enforcement decree defines the range for specific objects of fire protection to which Performance-Based Design is applied ('07, 1. 24). At the moment, by manufacturing simulator so that formulas can be introduced and calculated with software in order to install fire detector of automatic fire detection systems keeping optimized distance, comparing the results with the state of fire detector placed according to Performance-Based Design and analyzing them, this study was intended to settle Performance-Based Design method in the future.

The Design And Implementation of the Web-Based Performance Assessment System for the Effective Instruction and Learning (효율적 교수학습을 위한 웹 기반 수행평가 시스템 설계 및 구현)

  • Kwon, Hyung-Kyu;Lee, Eun-Jung
    • Journal of The Korean Association of Information Education
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    • v.8 no.1
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    • pp.125-137
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    • 2004
  • This research presents a performance assessment system of which the purpose is to increase the effectiveness of the instruction and learning through the on-the-job superintendent of the instructor, the self-directed learning of the learner, and the interaction between instructors and students. The presented performance assessment system applies the problem-based situated learning of the web-based performance assessment to the production, the execution, the assessment, and the transmission of the test. For the effective administration and learning in the school, we applies the Problem-Based Learning of constructivism and the web-based situated learning of the learning community to the system design. The production of the web-based performance assessment shows that the problem-based and self-directed learning of the assessment are achieved through the web-based automatic production of the performance assessment, and the contextual learning by case-based learning is performed by the production of the template of the performance assessment.

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Investigation of the required performance to develop a performance-based indicator for balcony window systems in apartment houses (공동주택 발코니 창호의 성능기반지표 개발을 위한 요구성능 조사)

  • Moon, Hyeun-Jun;Ryu, Seung-Ho;Yang, Gi-Young
    • Proceedings of the SAREK Conference
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    • pp.102-107
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    • 2009
  • Window system is an essential component for lighting, ventilation and thermal environment in buildings. Moreover, as balcony extension in apartment houses become legalized, the performance requirements of window systems in balcony space are getting complicated. However, at this moment, five properties of the windows are used to represent the performance aspects of the system, including wind resistance, air tightness, water tightness, sound insulation, thermal resistance. And such single properties are not capable to express the performance of a space with the window systems in terms of performance concept. A performance analysis with wholistic approach is required to see the effect of the window system in built environment. Thus, performance-based approach should be established, which will be able to evaluate the goal/function and comfort of occupants/owners. As the first step to develop the performance indicator for the window systme for balcony space, this study conducts a survey to find the required performance aspects. A complete set of performance-based indicators will be developed with verification methods in the later stage of research.

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Assessment of Service Life of Building Materials Based on Performance Degradation (열화성능에 의한 건설자재 수명평가에 관한 연구)

  • Kwon, Young-Il
    • Journal of Applied Reliability
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    • v.6 no.4
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    • pp.275-284
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    • 2006
  • A test method for assessing service life of building materials and components based on performance degradation data is developed. The performance of a building material degrades as time goes by and the failure of the material is often defined as the point at which the performance of the material reaches a pre-specified degraded level. A performance-based test method is developed and a numerical example is provided to illustrate the use of the developed test method.

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A Study on the Style of Expression in Performance-art Costuming - Focusing on Musical Costumes - (공연 예술 의상의 표현 방식에 관한 연구 -뮤지컬 의상을 중심으로-)

  • Kim, So-Young;Kim, Kyung-Hee
    • Journal of the Korea Fashion and Costume Design Association
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    • v.13 no.2
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    • pp.147-162
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    • 2011
  • The performance-art costume is a tool for expression that can dynamically display the intention of a production. The purpose of this study is to examine the whole costume for performance arts targeting musical works, to which were added such elements as music, dance, and drama, among performance arts in several genres. This study aims to consider how the symbol contained in the costume was intended to be expressed by inferring a change in performance costume and character as the stage costume. Accordingly, the following research problems were established in this study. First, Which role does the costume play in performance art? Second, into which types can the performance-art costume be classified depending on the kind of performance art? Third, what is the expressive method for the performance-art costume? To examine the types of performance-art costume, the acting costume, the singing costume, the dancing costume and the rhythmic performance costume were considered. As a result, the performance costume can be seen to have been designed through the effect of a change in color by lighting, through the differentiation of character caused by excessive decoration, through the differentiation in material for free movement, and through symbolic expression.

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Quantized System Modeling and Performance Evaluation

  • Lee, Jong-Sik
    • Proceedings of the Korea Society for Simulation Conference
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    • pp.87-93
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    • 2003
  • This paper reviews existing message-filtering schemes and presents a quantization-based message-filtering approach which reduces state update transmission and message traffic requirement. For a realization of the approach we develop a DEVS-based integrator which provides behavior and characteristic of the quantization-based approach. We take a spaceship and space traveling system as a case study to evaluate performance of the quantization-based approach. The approach is validated by DEVSJAVA simulations of the case study. The comparison of message traffic requirement between DTSS (Discrete Time System Specification)-based and DEVS-based systems apparently shows system performance improvement through the quantization-based approach.

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