• Journal of Computing Science and Engineering
• /
• 제8권1호
• /
• pp.57-63
• /
• 2014

User satisfaction has always been important in the success of software, regardless of whether it is closed and proprietary or open source software (OSS). OSS users are geographically distributed and include technical as well as novice users. However, it is generally believed that if OSS was more usable, its popularity would increase tremendously. Hence, users and their requirements need to be addressed in the priorities of an OSS environment. Online public forums are a major medium of communication for the OSS community. The research model of this work studies the relationship between user requirements in open source software and online public forums. To conduct this research, we used a dataset consisting of 100 open source software projects in different categories. The results show that online forums play a significant role in identifying user requirements and addressing their requests in open source software.

• 전기학회논문지P
• /
• 제62권1호
• /
• pp.30-35
• /
• 2013

Many function of railway signalling system which is in charge of most core function in a railway system are being operated by the software according to the development of computer technology. Accordingly, the source code testing to verify the safety of the railway signalling system software becomes to be more important, and related international standards highly recommend verifications on the source code also. For this reason, several related studies on vital source code verification were executed from several years ago in Korea. This paper performed tests through the application to railway signalling system being applied to the existing actual domestic railway sites through automated testing tools for coding rules of signalling system software and another signaling system software under development in Korea recently, and analyzed their results.

• 품질경영학회지
• /
• 제34권3호
• /
• pp.1-18
• /
• 2006

CMMI(Capability Maturity Model Integration) has been recognized as a critical method to validate the competitiveness of software development organization since its introduction. CMMI imposes additional requirements on the software development organization which has been established and certified to the ISO 9001 quality management system. This paper reviews the similarities and differences between CMMI and ISO 9001. This paper also examines what ate required to deploy the CMMI on the aircraft software development organization which has been certified to ISO 9001. The results of this study will help software development organization to provide the direction for implementing CMMI. Some suggestions are presented to identify and strengthen the weak portion of the software process quality management system.

• Journal of Yeungnam Medical Science
• /
• 제35권1호
• /
• pp.63-69
• /
• 2018

Background: Kinovea software that tracking semi-automatically the motion in video screen has been used to study motion-related tasks in several studies. However, the validation of this software in open field test to assess locomotor activity have not been studied yet. Therefore, this study aimed to examine the reliability and validity of this software in analyzing locomotor activities. Methods: Thirty male Institute Cancer Research mice were subjected in this study. The results examined by this software and the classical method were compared. Test-retest reliability and inter-rater reliability were analyzed with Pearson's correlation coefficient and intraclass correlation coefficient (ICC). The validity of this software was analyzed with Pearson's correlation coefficient. Results: This software showed good test-retest reliability (ICC=0.997, 95% confidence interval [CI]=0.975-0.994, p<0.001). This software also showed good inter-rater reliability (ICC=0.987, 95% CI=0.973-0.994, p<0.001). Furthermore, in three analyses for the validity of this software, there were significant correlations between two methods (Pearson's correlation coefficient=0.928-0.972, p<0.001). In addition, this software showed good reliability and validity in the analysis locomotor activity according to time interval. Conclusion: This study showed that this software in analyzing drug-induced locomotor activity has good reliability and validity. This software can be effectively used in animal study using the analysis of locomotor activity.

• 한국전자거래학회지
• /
• 제7권3호
• /
• pp.49-60
• /
• 2002

Many researchers have studied component technologies with concept, methodology and implementation for partial business domain, however there are rarely researches for component classification to manage these systematically. In this paper, we suggest a component classification model, which can make component reusability higher and can derive higher productivity of software development. We take four focuses generalization, abstraction, technology and size. The generalization means which category a component belongs to. The abstraction means how specific a component encapsulates its inside. The technology means which platform for hardware environment a component can be plugged in. The size means the physical component volume.

• 제어로봇시스템학회논문지
• /
• 제10권5호
• /
• pp.442-449
• /
• 2004

As underwater robotic vehicles (URVs) become attractive for more sophisticated underwater tasks, the demand of high performance in terms of accuracy and dexterity has been increased. An autonomous underwater robotic vehicle, ODIN (Omni-Directional Intelligent Navigator) was designed and built at the Autonomous Systems Laboratory of the University of Hawaii in 1991. Since 1991, various studies were conducted on ODIN and have contributed to the advancement in underwater robotics. Its refurbished model ODIN II was based on VxWorks in VMEbus. Recently, ODIN was born again as a PC based system, ODIN III with unique features such as new vehicle system software architecture with an objective-oriented concept, a graphical user interface, and an independent and modular structure using a Dynamic Linking Library (DLL) based on the Windows operating system. ODIN III software architecture offers an ideal environment where various studies for advanced URV technology can be conducted. This paper describes software architecture of ODIN III and presents initial experimental results of fine motion control on ODIN III.

• Toxicological Research
• /
• 제34권4호
• /
• pp.303-310
• /
• 2018

The methods of applied genetic toxicology are changing from qualitative hazard identification to quantitative risk assessment. Recently, quantitative analysis with point of departure (PoD) metrics and benchmark dose (BMD) modeling have been applied to in vitro genotoxicity data. Two software packages are commonly used for BMD analysis. In previous studies, we performed quantitative dose-response analysis by using the PROAST software to quantitatively evaluate the mutagenicity of four piperidine nitroxides with various substituent groups on the 4-position of the piperidine ring and six cigarette whole smoke solutions (WSSs) prepared by bubbling machine-generated whole smoke. In the present study, we reanalyzed the obtained genotoxicity data by using the EPA's BMD software (BMDS) to evaluate the inter-platform quantitative agreement of the estimates of genotoxic potency. We calculated the BMDs for 10%, 50%, and 100% (i.e., a two-fold increase), and 200% increases over the concurrent vehicle controls to achieve better discrimination of the dose-responses, along with their BMDLs (the lower 95% confidence interval of the BMD) and BMDUs (the upper 95% confidence interval of the BMD). The BMD values and rankings estimated in this study by using the EPA's BMDS were reasonably similar to those calculated in our previous studies by using PROAST. These results indicated that both software packages were suitable for dose-response analysis using the mouse lymphoma assay and that the BMD modeling results from these software packages produced comparable rank orders of the mutagenic potency.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제16권3호
• /
• pp.1063-1075
• /
• 2022

In recent years, container techniques have been broadly applied to cloud computing systems to maximize their efficiency, flexibility, and economic feasibility. Concurrently, studies have also been conducted to ensure the security of cloud computing. Among these studies, moving-target defense techniques using the high agility and flexibility of cloud-computing systems are gaining attention. Moving-target defense (MTD) is a technique that prevents various security threats in advance by proactively changing the main attributes of the protected target to confuse the attacker. However, an analysis of existing MTD techniques revealed that, although they are capable of deceiving attackers, MTD techniques have practical limitations when applied to an actual cloud-computing system. These limitations include resource wastage, management complexity caused by additional function implementation and system introduction, and a potential increase in attack complexity. Accordingly, this paper proposes a software-defined MTD system that can flexibly apply and manage existing and future MTD techniques. The proposed software-defined MTD system is designed to correctly define a valid mutation range and cycle for each moving-target technique and monitor system-resource status in a software-defined manner. Consequently, the proposed method can flexibly reflect the requirements of each MTD technique without any additional hardware by using a software-defined approach. Moreover, the increased attack complexity can be resolved by applying multiple MTD techniques.

• 한국보육학회지
• /
• 제19권2호
• /
• pp.177-196
• /
• 2019

본 연구는 2016년부터 3년간 발표된 유아 소프트웨어 교육 관련 국내 최근 연구들의 경향을 게재 경향과 연구방법의 측면에서 분석하는데 연구의 목적을 두었다. 분석대상은 한국학술지인용색인과 국가학술연구정보 공유 시스템에서 검색된 유아의 소프트웨어 교육 관련 연구 26편이었다. 발표된 연구의 게재 경향은 발표 연도, 발표 형식, 학문 분야의 범주에 따라 살펴보았다. 연구방법 측면에서는 연구의 주제 특성과 연구방법 유형, 그리고 연구변인의 특성을 분석하였다. 연구의 결과를 연구의 게재 경향 측면에서 살펴본 바, 2016년부터 최근 3년간 발표된 연구 편수는 연도별로 점차 증가하며, 학술지 논문 형태로 대다수가 발표된 것으로 나타났다. 전체 분석대상의 61.5%(16편)가 유아교육 및 아동학 관련 학문 분야에서 발표된 논문이었다. 연구방법 측면에서는 먼저, 연구의 주제와 연구대상 관련하여 유아 소프트웨어 교육 프로그램 개발 연구, 또는 만4세와 만5세를 대상으로 효과 검증을 한 연구가 다수를 차지하는 것으로 밝혀졌다. 연구방법으로는 실험연구와 문헌연구방법 (각 8회), 조사연구(7회)의 순으로 많이 적용된 것으로 나타났다. 연구변인의 특성으로서 많이 다루어진 측정변인은 유아의 인지적 특성 변인으로 나타났다. 연구에 적용된 프로그램의 특성과 관련하여, 첫째, 프로그래밍 도구 환경을 중심으로 분류한 결과 가장 많은 6편의 연구가 피지컬 컴퓨팅 환경의 프로그램을 사용하였으며, 연구에 사용된 프로그래밍 도구 로봇 중에서는 Albert가 가장 많이 사용된 것으로 나타났다. 프로그램의 적용 기간은 5주~48주로 차이가 있었다. 분석대상 연구들에서 컴퓨팅 사고력은 소프트웨어 교육에 의해 향상되는 문제해결 능력으로 개념화된 경우가 가장 많았으며, 그 하위요인별 개별도구로써 측정되었음을 알 수 있었다. 본 연구의 결과 유아의 소프트웨어 교육 관련 연구가 최근 증가하는 경향을 보이지만 연구 편수의 축적과 연구방법 측면에서 개선이 필요하다는 것을 확인할 수 있었다.

• 디지털융복합연구
• /
• 제12권12호
• /
• pp.337-343
• /
• 2014

소프트웨어 재사용과 애자일 방법의 통합에 새로운 방안을 찾으려는 여러 노력들이 있다. 본 논문은 스크럼과 같은 애자일 방법에서 재사용과의 통합을 연구한다. 애자일 방법은 잦은 요구사항의 변경을 수용하며, 소프트웨어 재사용은 개발 노력의 단축과 같은 장점이 있다. 스크럼 방법은 산업체에서 빠르게 수용되고 있음에도 불구하고, 스크럼 방법에서는 적극적인 재사용이 강조되지 않고 있으며 대부분의 통합 연구는 소프트웨어 프로덕트라인 공학에 애자일 프랙티스를 도입하고 있다. 하지만, 스크럼의 반복개발과 백로그 상세화 활동은 재사용을 촉진하는 장점을 갖고 있다. 본 연구에서는 재사용을 위한 스프린트의 특성과 구성요소를 식별하고 확장 백로그 정련 스텝을 제시하였다. 본 연구의 결과를 통하여, 애자일 방법에서의 재사용 지원을 위한 스크럼의 백로그 상세화에서 백로그 팩토링을 통합 할 수 있었다. 아울러, 제안된 방법을 인터넷 쇼핑몰 어플리케이션 응용에 적용하고 프로토타이핑을 통하여 백로그 상세화에서의 제품 백로그 재사용을 얻을 수 있었다.