• The Journal of Korean Association of Computer Education
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• v.22 no.1
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• pp.31-46
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• 2019

The purpose of this study is to analyze the self-directed learning types of software education learners and to characterize them according to each type. To do this, 429 middle school students participating in online software education at K university were surveyed and a latent class analysis to analyze self-directed learning types was conducted. As a result, the self-directed learning types of the software education learners were classified into 'highest level of self-directed learning type (class 1)', 'self learning style recognition type (class 2)', 'self learning style preference type (class 3)', and 'lack of self-directed learning type(class 4)'. Also, the level of software learning achievement according to self-directed learning type of software education learners was found to be the highest at 'highest level of self-directed learning type (class 1)' and lowest at 'self learning style preference type (class 3)'. Based on these results, we suggested the strategic implications for software education.

• Journal of the Korea Convergence Society
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• v.6 no.4
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• pp.105-111
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• 2015

Most of the software development is determined by the hard skills of project participants and capacity management and operations. However, failure of the current software development is very high. Since the development of the exploration of human psychology continues, the study that there is an association between the preferences of personality and work preference has been actively conducted. It is found out that there is a relationship of preferences in MBTI, the test tool of psychological typology, and those for the work of the ICT engineers tuned to the software development cycle. By using the information on the soft skills associated with software development for the psychological typology, it can be understood the preference of the software development process. In this paper, we develop a program for software development process to allow personality type to be classified with using the soft skills to find ways to improve education and collaboration capabilities of ICT engineers.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.365-368
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• 2005

최근 소프트웨어 산업에서 소프트웨어 품질이 화두가 되고 있으며 소프트웨어 제품 개발 시 소프트웨어 품질 및 시험 개념을 적용하지 않으면 소프트웨어 시장에서 외면될 가망성이 높아지고 있다. 그로 인해 TTA SW 시험인증 센터에서 소프트웨어 품질을 높이기 위해 GS 시험인증을 서비스 하고 있다. 소프트웨어 시험을 통한 결함 분석을 통해 소프트웨어 제품 개발 시 개발 프로세스에 반영하고 개발자가 소프트웨어 제품을 구현 시 결함에 대한 분석정보를 활용할 수 있도록 소프트웨어 품질특성 중 결함이 많이 발생하는 부분에 결함 유형을 정의하고 사전에 방지할 수 있는 해결방법을 제시한다.

• Journal of KIISE
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• v.42 no.11
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• pp.1349-1360
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• 2015

In order to improve software quality, it is necessary to efficiently and effectively remove software defects in source codes. In the development field, defects are removed according to removal ratio or severity of defects. There are several studies on the removal of defects based on software quality attributes, and several other studies have been done to improve the software quality using classification of the severity of defects, when working on projects. These studies have thus far been insufficient in terms of identifying if there exists relationships between defects or whether any type of defect is more important than others. Therefore, in this study, we collected various types of software defects, standards organization, companies, and researchers. We modeled the defects types using an ANP model, and developed the weighted severities of the defects types, with respect to the general application software, using the ANP model. When general application software is developed, we will be able to use the weight for each severity of defect type, and we expect to be able to remove defects efficiently and effectively.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10a
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• pp.544-564
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• 2001

CNS(Compact Nuclear Simulator)는 원자력발전산업에 종사하는 조직구성원을 교육훈련 시키는 필수도구로써 원자력 시뮬레이터의 유형 중에 중형규모에 속한다. 원자력 시뮬레이터는 다양한 기능과 복잡성을 갖는 이질적인 응용 소프트웨어가 요구되기 때문에 개발기간이 길고 비용이 많이 든다. 본 연구는 이를 극복하기 위한 일환으로 상용도구의 과감한 활용, 소프트웨어 생명주기의 준수, 단순 명료한 시뮬레이션 응용 소프트웨어 구조개발을 수행하고 있다. 본 논문에서는 CNS 응용 소프트웨어 유형과 기능, 공유메모리 변수를 사용한 응용 소프트웨어 구조개발의 경험을 살펴본다. 또한, 본 연구를 통하여 얻은 CNS 응용 소프트웨어 개발효과와 향후 유사한 시뮬레이터의 개발방향을 토의한다.

• Journal of Korea Multimedia Society
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• v.15 no.1
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• pp.115-130
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• 2012

These days, most of safety-critical systems, which are systems those failures or malfunction may result in death or serious injury to people, or loss or severe damage to social systems, or environmental harm, are being built of embedded software or loaded controlling software systems on computers, electrical and electronic components or devices. There are a lot kind of fault analysis methods to evaluate safety of the safety-critical systems equipped computers, electrical and electronic components or devices with software. However, the only assessment method to evaluate software safety of a safety-critical system is not enough to analysis properly on account of the various types and characteristic of software systems by progress of information technology. Therefore, this paper proposes the integrated evaluation method and carries out a case study for the software safety of safety-critical system which embedded or loaded software sizes are small and control response times are not sensitive by use of two security analysis methods which are Fault Tree Analysis (FTA) and Fault Modes and Effect Analysis (FMEA) for ubiquitous healthcare system.

• Communications for Statistical Applications and Methods
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• v.18 no.6
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• pp.741-750
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• 2011

In this paper, we derive an software mixed debugging model based on a Markov process, assuming that the length of time to perform the debugging is random and its distribution may depend on the fault type causing the failure. We assume that the debugging process starts as soon as a software failure occurs, and either a perfect debugging or an imperfect debugging is performed upon each fault type. One type is caused by a fault that is easily corrected and in this case, the perfect debugging process is performed. An Imperfect debugging process is performed to fix the failure caused by a fault that is difficult to correct. Distribution of the first passage time and working probability of the software system are obtained; in addition, an availability function of a software system which is the probability that the software is in working at a given time, is derived. Numerical examples are provided for illustrative purposes.

• The Journal of Korean Association of Computer Education
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• v.22 no.5
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• pp.51-65
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• 2019

This study aims to provide educational implications for more strategic online software education by the types of online learning according to learners' self-regulated learning characteristics in the online software education environment and examining the characteristics of each type. For this, variables related to self-regulated learning characteristic were extracted from the log data of 809 students participating in the online software learning program of K University, and then analyzed using hierarchical cluster analysis. Based on hierarchical cluster analysis learner clusters according to the characteristics of self-regulated learning were derived and the differences between learners' learning characteristics and learning results according to cluster types were examined. As a result, the types of self-regulated learning of online software learners were classified as 'high level self-regulated learning type (group 1)', 'medium level self-regulated learning type (group 2)', and 'low level self-regulated learning type (group 3)'. The achievement level was found to be highest in 'high-level self-regulated learning type (group 1)' and 'low-level self-regulated learning type (group 3)' was the lowest. Based on these results, the implications for effective online software education were suggested.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.209-212
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• 2007

소프트웨어 개발 초기 단계에서 소프트웨어 개발비용을 정확하게 예측하는 것은 프로젝트의 성패를 결정짓는 중요한 요소이다. 정확한 예측을 위해서는 빠르게 변화하는 개발 환경 및 기술 변화에 따른 변경 요인을 비용 산정 과정 시 반영시켜야 하며 이를 위해서는 비용 산정 과정 시 적절한 보정계수 선정과 보정계수 값 적용이 중요시된다. 이에 본 논문에서는 어플리케이션 유형 보정계수 개선을 위하여 어플리케이션 유형을 새로 분류한 후 AHP 기법을 적용하여 보정계수를 유도하였다. 또한 개발언어 보정계수 유도에서는 프로그래밍 언어 레벨을 이용하여 프로그래밍 언어별 보정계수를 새롭게 유도하여 보았다. 향후 연구 과제로는 새롭게 제안된 어플리케이션 유형 분류 및 보정계수와 프로그래밍 언어 레벨을 적용한 개발 언어 보정계수를 실제 데이터에 적용하여 비용 예측의 정확도가 얼마나 향상되었는지 검증하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.05a
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• pp.445-447
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• 2023

최근, 환자의 현재와 과거 방문 정보(즉, 환자가 현재와 과거 각 방문에서 진단 받은 질병들과 수술들)를 활용하여 환자 임베딩을 획득한 뒤, 환자의 현재 방문에서 효과적인 의약품들을 추천해주는 의약품 추천 연구들이 활발하게 진행되고 있다. 이들은 환자 임베딩을 획득하기 위해, 현재와 과거 방문 정보를 유형 별(즉, 질병과 수술 별)로 각각 융합하여 하나의 질병과 수술 임베딩으로 나타낸 뒤 이 두 임베딩을 융합한다. 이로 인해, 방문 정보 유형 별 임베딩을 융합하는 방법은 의약품들을 추천하는데 있어서 큰 영향을 미칠 수 있다. 그러나 지금까지 방문 정보 유형 별 임베딩을 어떻게 융합하는 것이 환자에게 의약품들을 추천하는데 가장 효과적인지 탐구한 연구는 없다. 따라서, 본 논문에서 우리는 실세계 데이터 집합을 활용한 실험을 통해 방문 정보 유형들 간의 다양한 융합 방법들 중 어떠한 방법이 추천 정확도 개선에 가장 효과적인지 비교하고 분석하여 환자에게 가장 효과적인 의약품들을 추천해주고자 한다.