Earticle

소프트웨어교육에 대한 관심이 높아지면서 소프트웨어교육의 교수·학습 방법 및 평가에 대한 논의도 같이 활 발해지고 있다. 현재 이루어지고 있는 소프트웨어교육 수업 방법의 문제는 교수자가 학습자의 컴퓨터에서 진행 되고 있는 코딩의 내용을 실시간으로 파악할 수 없다는 것이다. 이에 따라 교수자는 적시에 학습자에게 피드백 을 주는데 한계가 있다. 이 문제를 극복하기 위하여 본 연구에서는 학습분석 기법을 적용하여 엔트리 기반의 실 시간 학습자 코딩 상황을 파악하고 교수자에게 전달하는 소프트웨어교육 지원 시스템을 개발하고, 학습중에 수 집되는 데이터를 Hadoop 시스템을 통하여 시각화는 체제를 구현하였다. 소프트웨어교육 지원 시스템은 교사와 학습자가 접속하는 표현 계층과 코드를 분석하고 구조화하여 평가하는 비즈니스 계층, 그리고 학급정보, 계정 정 보, 학습정보 등을 저장하는 DB 계층을 포함하고 있다. 교수자는 미리 학습할 내용을 소프트웨어교육 지원 시스 템에 설정하는 것이 가능하고, 저장된 코드와 학생들의 코드를 비교한 데이터를 기반으로 하여 컴퓨팅 사고력 요소 루브릭을 통해 학습자의 성취율을 비교·분석할 수 있다.

As interest in software education has increased, discussions on teaching, learning, and evaluation method it have also been active. One of the problems of software education teaching method is that the instructor cannot grasp the content of coding in progress in the learner's computer in real time, and therefore, instructors are limited in providing feedback to learners in a timely manner. To overcome this problem, in this study, we developed a software education support system that grasps the real-time learner coding situation under block-based programming environment by applying a learning analysis technique and delivers it to the instructor, and visualizes the data collected during learning through the Hadoop system. The system includes a presentation layer to which teachers and learners access, a business layer to analyze and structure code, and a DB layer to store class information, account information, and learning information. The instructor can set the content to be learned in advance in the software education support system, and compare and analyze the learner's achievement through the computational thinking components rubric, based on the data comparing the stored code with the students' code.

지자체에서 관리하는 교량에 대해서 과학적이고 체계적인 유지관리 표준안과 정량 화된 데이터기반을 통한 예산확보 및 집행의 과학화를 위해 지자체관리용 교량 유지 관리시스템이 필요한 실정이다. 본 연구는 지자체에서 유지관리하고 있는 소규모 교 량의 효율적인 관리를 위한 시스템 개발을 목표로 하며 BIM/GIS기술 등의 ICT융합 기술을 사용하였다. 시스템개발의 세부내용으로는 모바일 기기용 소규모 교량 유지 관리 프로그램 개발, 소규모 교량 유지관리 데이터베이스 개발, 소규모 교량 통합유 지관리 개발이며 지자체에서 관리하는 소규모 교량의 테스트베드 구축 및 운영내용 을 확인하여 개발한 프로그램 시스템의 신뢰성을 얻었다. 개발된 프로그램 시스템을 무전원방식의 교량 스마트 명판제작 및 Reader모듈 개발로 연계하였다.

For the bridges managed by the municipalities, there is a need for a maintenance management system for the municipal governments for the scientific and systematic maintenance standard and the scientificization of the budget acquisition and execution through the quantified data base. The purpose of this study is to develop a system for efficient management of small bridgies maintained by the municipality and use ICT convergence technology such as BIM / GIS technology. The details of the system development include the development of the small bridgies maintenance program for mobile devices, the development of the small bridgies maintenance database, the development of the small bridgies integration maintenance management, and the reliability of the program system developed by checking the construction and operation contents of the small bridgies test-bed. The developed program system is linked to the development of smart name plate and reader module of non - power system.

To better predict and classify failures of information system development projects (ISDPs), this study proposes ISDPs failure prediction models using the traditional statistical methods and artificial intelligence methods, namely multiple discriminant analysis (MDA), logistic regression (LR), multi-layer perceptron (MLP), classification and regression tree (CART), commercial version 5.0 (C5.0), and support vector machine (SVM). We performed the analysis on the audit report data of 446 projects that were conducted by a global information technology (IT) company, to build the IT service systems and relevant service infrastructures needed for a project with South Korea’s mobile telecommunication companies. The research variables, which were confirmed by project performance management system (PPMS) of the company, are composed of thirteen variables. Empirical results indicated that SVM outperforms other models such as MDA, LR, MLP, CART, and C5.0.

The article is dedicated to basic aspects of health system reforms as the essential component of level and quality of life of the population of the Republic of Uzbekistan. Therefore, the basic legal acts which have formed a basis for sustainable development of this sphere have been given. Measures stimulated the forming organizational, economic and legal conditions for improvement of quality of medical services, education of healthy generation are defined. The basic directions of public health services reforming are analyzed: motherhood and childhood protection; level of disease of the population; the most widespread types of diseases are revealed; the technical-material and staff potential of medical institutions. Effective and rational use of budgetary funds is the important indicator of quality of public health services. In the article the analysis of financial base of public health services, sources of funding are conducted. It is concluded that growth of financial expenses on public health services reflects the effective strategy of the State directed on maintenance of dynamical development of public health. Hence, according to all revealed aspects of public health system achievements during transformation period a number of measures on its further reforming and improvement are offered.

이 연구에서는 “ISD 기반 직무능력중심 채용모형”을 제시하고, 이에 근거하여 “인사·조직”분야 절차 별 예시를 제공하여 타당성을 확보하는데 있다. 이 연구의 목적을 달성하기 위하여 문헌연구, 개발연구 및 전문가협의회를 실시하였다. 이 연구에서 제공하는 채용모형은 개발자에게는 개발과정 및 개발내용 에 대한 지속적인 피드백을 받을 수 있고, 민간기관에서는 필요한 채용평가도구를 개발하는데 활용할 수 있도록 ISD(교수체제개발)를 적용하여 개발하였다. 따라서, 직무능력 중심 채용모형은 크게 분석, 설 계, 개발, 실행, 평가 단계로 이루어진다. 구체적으로 1단계 분석단계는 개발계획수립과 개발직군을 선정한다. 2단계 설계 단계에는 직무분류, 직무조사 방법 수립(문헌조사, 설문, 인터뷰, 관찰), 직무분석 등을 통해 단위를 선정한다. 능력단위 선 정한 후에는 직무전문가(SME)들의 검토를 받아 타당성을 확보한다. 3단계 개발 단계에서는 채용직무기 술서, 서류평가도구, 필기평가도구, 면접필기평가도구를 개발한다. 4단계 실행단계는 직무능력 중심 채 용모형에 따라 개발된 평가도구를 중심으로 실제 선발계획을 수립한 후 선발을 실시한다. 5단계 평가 단계에서는 선발타당성을 검증하고, 효용성을 분석한다. 이 연구에서 제시한 직무능력 중심 채용모형은 다양한 공공․민간기업, 산업별 인적자원개발위원회 (ISC)는 물론 대학 등 교육기관에서 청년들의 진로지도를 하는데 있어서 적극적으로 활용할 수 있도록 하여야 하고, 개발과정 및 개발된 채용 평가도구는 지속적인 피드백을 통하여 질 관리를 하여야 할 것 이다.

The purpose of this study was to develop job competency-recruitment model development based ISD. This study was carried out the theoretical review, developing method, a panel of expert committee. The job competency-recruitment model provided in this study was developed by applying ISD(instructional system development) so that developers can receive continuous feedback on the development process and development contents, and private institutions can use it to develop the necessary employment evaluation tools. through this, the developed job competency-recruitment model is largely composed of analysis, design, development, implementation, and evaluation stages. Specifically, in the first stage of analysis, the development plan is established and the development group is selected. in the second stage of design, competency units are selected through job classification, establishment of job survey methods (document research, questionnaires, interviews, observations) and job analysis. after the selection of competency units, validity is obtained by review by SMEs. in the third stage of development, the job description, document evaluation tool, handwriting evaluation tool, and interview writing tool are developed. in the fourth phase of implementation, the actual recruitment is conducted based on the evaluation tools developed according to the job competency-based recruitment model after its own recruitment planning. In the five-step evaluation stage, the actual recruitment feasibility is verified and the utility of the job competency-recruitment model is analyzed. The job competency-recruitment model proposed in this study should be used in various public / private enterprises, industrial skills council(ISCs), universities, and educational institutions such as universities to actively use them for career guidance. the job competency-recruitment model developed should be quality-controlled through continuous feedback.

Background: For positron emission tomography (PET) application, cadmium zinc telluride (CZT) has been investigated by several institutes to replace detectors from a conventional system using photomultipliers or Silicon-photomultipliers (SiPMs). The spatial and energy resolution in using CZT can be superior to current scintillator-based state-of-the-art PET detectors. CZT has been under development for several years at the Korea Atomic Energy Research Institute (KAERI) to provide a high performance gamma ray detection, which needs a single crystallinity, a good uniformity, a high stopping power, and a wide band gap. Materials and Methods: Before applying our own grown CZT detectors in the prototype PET system, we investigated preliminary research with a developed discrete type data acquisition (DAQ) system for coincident events at 128 anode pixels and two common cathodes of two CZT detectors from Redlen. Each detector has a 19.4×19.4×6 mm3 volume size with a 2.2 mm anode pixel pitch. Discrete amplifiers consist of a preamplifier with a gain of 8 mV·fC-1 and noise of 55 equivalent noise charge (ENC), a CR-RC4 shaping amplifier with a 5 μs peak time, and an analog-to-digital converter (ADC) driver. The DAQ system has 65 mega-sample per second flash ADC, a self and external trigger, and a USB 3.0 interface. Results and Discussion: Characteristics such as the current-to-voltage curve, energy resolution, and electron mobility life-time products for CZT detectors are investigated. In addition, preliminary results of gamma ray imaging using 511 keV of a 22Na gamma ray source were obtained. Conclusion: In this study, the DAQ system with a CZT radiation sensor was successfully developed and a PET image was acquired by two sets of the developed DAQ system.

Over the past decades, the astounding development in both computer technology and the network has considerably promoted the research and application of language educational technologies. Given the tendency of China’s college English education as well as the curriculum requirements dictated by the Ministry of Education of China (2004), it is necessary to develop a CALL system corresponding to China’s college English education reality. The paper concerns itself with an analysis of English Language & Culture CAI Matrix (ELCCAIM) developed independently by the practicing English teachers of Foreign Languages College of Sichuan University in China. By analysing ELCCAIM, the paper aims to explore the feasibility and necessity of developing the localized CALL system for China’s college English teaching and learning on the base of computer technology and the campus-network and applying the theories of educational psychology and linguistics to the development process.

본 논문에서는 시대적 요구에 적합하도록, 개발인력의 수급이 어려운 모바일 애플리케이션을 개발하는 시스 템을 중심으로 3-Tier App개발 교육환경을 제안하였다. 3-Tier App개발 교육시스템의 설계와 구현은 대학과 기업의 소프트웨어 개발환경을 동일하게 구성하고 구현하는데 있다. 3-Tier App 개발 교육시스템에 대한 실습실환경은 3대 의 컴퓨터와 3명이 학생을 그룹으로 하여 실습을 수행하며 개발용 컴퓨터, Gateway 서버, 데이터베이스서버와 레거 시 기간계 시스템으로 구성하고 학생은 개발용 컴퓨터와 구현 디바이스 담당, Gateway 서버시스템 담당과 데이터베 이스서버와 레거시 기간계 시스템 담당자로 역할을 부여한다. IT전공 대학 3학년, 64명을 학생을 대상으로 3계층 시 스템의 실습을 통하여 기업 맟춤형 인재양성의 가능성을 확인하였다. 또한, 시스템 성능에 대한 10개 세부항목 비교 결과, 단독시스템 대비 3계층 시스템의 우수함을 입증하였다.

This study in coping with the current trend is to propose the environment for training 3-Tier App development being focused on the system to develop mobile applications where its related developers are scarce. Design and implementation of training system for the development of 3-Tier App in this paper is to realize the environment for software development for colleges as same as that in IT companies. For 3-Tier App development training system, 3 students with 3 computers work as a group. The above-mentioned 3 computers include a computer for development, Gateway server, and DB server together with legacy system. Also, each of the 3 students shall be given roles of the foregoing sections. We have educated 3-Tier App training system as a practical class for 64 students in junior students of computer information major. Through training session, it was confirmed that we can foster the students as custom-made talents who understand company’s development environment. Also, the Comparison of 3-Tier and Stand-alone App Development Training System for 10 distinct description, we know that 3-Tier app development training system was very superior to stand-alone app development training system in the educational effects.

Foams, originating from wastewater treatment processes and specifically aeration tanks, usually lead to a decrease of treatment efficiency, which results in several problems such as lower discharge quality, more maintenance cost, outbreak of offensive odors, and riskiness of accidents. Thus both detection probe and fuzzy control system of form are developed in this study based on economical and technical efficiencies. The foam-detecting probes developed is the ends of severed wires, which are virtually costless to manufacture and maintain, so numbers of probes can be installed to obtain the data required for judging the location, size, volume and duration of foam. The experimental results of this study show that both detection probes and fuzzy control system of form can effectively be used to detect form generation and also judge whether or not the form elimination device should be operated.

본 연구의 목적은 대청호 유역의 수질을 평가하는 것이며, 평가는 사전조사를 통해 지표를 산출하고, 각 지표에 따른 결과 분석을 위해 지난 10년간의 기초자료를 수집 후 SPSS 프로그램을 활용하여 통계분 석을 실시하였다. 물사회서비스 기초자료는 GIS가 위치한 면적을 나누어 지류하천의 유역면적을 산출하 고, WAMIS를 통해 도시의 상하수도 통계를 산출하였다. 기초 자료를 바탕으로 왜곡된 자료의 정규성을 확보하고 표준화하였으며, SPSS 프로그램을 이용한 요인분석 후 적합성 검토를 통해 최종 지표를 산출하 였다. 산출된 지표에 대하여 연구에 적합한 가중치를 산출·비교한 후 최종 가중치를 도출하여 지수산출 및 점수를 부여하였다. 이러한 과정을 바탕으로 물사회서비스 평가방법론과 물복지 실현을 위한 평가결 과를 제시하였다. 본 연구를 통한 물 사회 서비스 평가는 하천 환경의 변화를 지속적으로 모니터링함으로 써 하천 가치의 보존 및 발전에 미치는 부정적인 영향을 최소화하는 데 도움이 될 것으로 판단된다.

The purpose of the study is to evaluate the water quality in the Daecheong Lake basin. This evaluation calculates indicators through preliminary studies, and for the analysis of results according to each indicator, statistical analysis was conducted through SPSS after collecting basic data over the past 10 years. For basic water and social service data, the basin area of tributary rivers was calculated by dividing the area where the GIS is located. Based on the basic data, the normality of distorted data was secured and standardized, and the final index was calculated through a suitability review after factor analysis using the SPSS program. For the calculated indicators, the weights suitable for the study were calculated and compared, the final weights were selected and the index calculation and scoring were conducted. Finally, the evaluation methodology of water social service and the evaluation results for the realization of water welfare were presented. The evaluation of water social services through this study will help minimize the negative impact on the preservation and development of river values by continuously monitoring changes in the river environment.