• Asia pacific journal of information systems
• /
• 제16권3호
• /
• pp.193-203
• /
• 2006

Software reliability prediction is a statistical method to put in place a timely software development practice useful for objective assessment of bidders. The current study suggests one research method that enables reliability assessment of such previous projects by studying user satisfaction and project management history. If incorporated into the existing acquisition process, the reliability assessment method will further enhance objectivity and accuracy in bidder selection process. The GQM(Goal Question Metric) paradigm was used to identify assessment metrics for bidder evaluation and questionnaires were collected from users to create user satisfaction indexes. In addition, 'weight of evidence', the most appropriate categorical method, was used to isolate attributes of each variable that may contribute to reliability assessment.

• 산업경영시스템학회지
• /
• 제35권1호
• /
• pp.16-23
• /
• 2012

Recently, as organizational systems have become larger and more complicated, the evaluation for their efficiency and effectiveness has become more difficult but important. It is essential to understand the current strength and weakness of the organizational process. It can be a starting point for improving the efficiency and effectiveness of the organizational systems, because the quality of system outputs depend greatly on the capability of system process. Particularly in such process-based industries as semiconductor, energy or software industries, an assessment of process capability is more highlighted to gain knowledge of the expected quality and reliability of system outputs. As a result, much attention has been given to the issues of process capability assessment in the process-based industries. However, most of the previous research in those industries is based on case studies, a more generalized method for process capability assessment is in need for help more companies improve their processes. Therefore, this study aims to propose a process capability assessment method and apply the proposed method to an energy company. This research argues that the process capability is composed of individual and organizational capabilities of the process. Then, the concept of Capability Maturity Model Integration, which was initially suggested to evaluate the software development process, was introduced to develop the assessment tools and process. Finally, the proposed method was applied to a Korean company in the energy industry sector to verify its utility. The research outputs are expected to help more firms assess their process capability and ultimately improve the process.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2008년도 제39회 하계학술대회
• /
• pp.1014-1015
• /
• 2008

Safety critical systems are those in which a failure can have serious and irreversible consequences. Nowadays digital technology has been rapidly applied to critical system such as railways, airplanes, nuclear power plants, and vehicles. The main difference between analog system and digital system is that the software is the key component of the digital system. The digital system performs more varying and highly complex functions efficiently compared to the existing analog system because software can be flexibly designed and implemented. The flexible design make it difficult to predict the software failures. This paper reviews safety standard and criteria for safety critical system such as railway system and suggests development process, ordering management and assessment process for railway software with more detail description.

• 한국컴퓨터정보학회논문지
• /
• 제14권6호
• /
• pp.33-40
• /
• 2009

본 논문의 목적은 디지털 저작권에 기반기술로 이용될 수 있는 워터마킹 알고리즘 구성에 대한 소프트웨어 프로세스 심사에 있다. 소프트웨어 프로젝트에 수반되는 작업 프로세스들이나 관련된 작업 자원들은 서로 다른 복잡성을 갖는다. 경험 의존적인 방식은 소프트웨어 개발비용을 높이는 원인이 되며 개발된 소프트웨어의 품질도 보장 받기 어려워지다. 또한 소프트웨어 개발 프로젝트의 규모에 따라 적합하게 적용하지 �方�, 소규모의 프로젝트도 소프트웨어 개발 방법론에 거론되는 전체 항목을 수행하려다 보면 많은 개발비용이 소요되어 방법론 적용에 문제가 될 수 있다. 이러한 문제점들을 해결하기 위한 방법으로 소프트웨어 프로세스와 관련 지식들을 재활용하는 접근 방법들이 제시 되어왔다. 본 논문에서는 프로젝트의 환경과 특성 요인들을 분석하여 그들에 맞는 프로세스들을 선정하는 방법을 제시한다. 프로젝트 환경과 특성에 맞는 개발 경로 선정을 용이하게 하기 위하여 ISO/IEC 15271, ISO/IEC 12207 및 ISO/IEC 15504의 프로세스 내용에 준하여 영역 특성을 분류하여 프로젝트 개발 경로 선정 항목을 정하여 이를 본 논문에서의 적용범위로 한다.

• 품질경영학회지
• /
• 제36권1호
• /
• pp.89-95
• /
• 2008

In this paper, we propose a software reliability growth model based on the superposition cause in the software system, which is isolated by the executed test cases in software testing. In particular, our model assumes an imperfect debugging environment in which new faults are introduced in the fault-correction process, and is formulated as a nonhomogeneous Poisson process(NHPP). Further, it is applied to fault-detection data, the results of software reliability assessment are shown, and comparison of goodness-of-fit with the existing software reliability growth model is performed.

• 정보처리학회논문지D
• /
• 제13D권1호
• /
• pp.87-96
• /
• 2006

본 논문은 프로젝트 환경과 특성을 고려하여, 소프트웨어 개발 경로를 커스터마이징 하는 방법을 설계한 것이다. 개발 경로 선정 기준은 ISO/IEC TR 15721 Information Technology Guide for ISO/IEC 12207(Software Life Cycle Processes), ISO/IEC 15504 Information technology - Process assessment의 프로세스 내용에 기반 한 10개의 영역 특성이다. 10개의 영역 특성은 프로젝트 환경과 특성을 반영한 것이며, 프로젝트 개발 경로 선정 항목들을 정의한다. 프로젝트 환경과 특성 항목인 10개 영역 특성 항목을 이용하여 소프트웨어 개발 프로세스를 선정하는 알고리즘을 제시한다. 본 논문에서 제안한 소프트웨어 개발 경로를 커스터마이징 하는 방법을 평가하기 위하여 소프트웨어 개발 경로를 커스터마이징 하는 방법을 반영한 개발 경로 선정 시스템을 가지고 웹 기반 시스템 개발 프로젝트를 적용한다. 그러나 입증된 수작업 프로젝트 경로 프로세스와 시스템에서 출력된 프로젝트 경로 프로세스가 차이가 난다 차이가 나는 주원인은 산출물이 서로 합쳐졌거나, 명칭이 바뀌었기 때문이다. 효과로는 소프트웨어 개발 프로젝트 환경과 특성에 적합한 경로 프로세스를 용이하게 선정한다.

• 한국소프트웨어감정평가학회 논문지
• /
• 제16권2호
• /
• pp.87-98
• /
• 2020

최근 IoT, 인공지능, 클라우드, 빅데이터, 모바일 분야가 융합되어 4차 산업혁명이라는 새로운 산업시대가 도래하였고 전 사업군으로 확대 되었다. 이 중심에는 소프트웨어가 중요한 역할을 담당하고 있지만 다양한 사업군으로 적용, 보편화됨에 따라 소프트웨어 안전에 대한 이슈가 부각되고 있다. 하지만 현재 소프트웨어 Safety는 개발 관점에서만 활동이 집중적으로 맞춰져 있고, 조직적인 개선 활동과 평가 체계 수준에 대해서는 다소 미진하다. 본 연구에서는 이러한 미진사항을 보완하고자 소프트웨어 Safety 성숙도 모델을 정의하고, 각 성숙도 레벨의 Process Area를 명시하였다. 본 연구에서 고안된 Safety 성숙도 모델을 기반으로 조직관점의 Safety 확립과 함께 체계적인 소프트웨어 Safety 개선 활동에 기여할 것으로 기대한다.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2010년도 춘계학술대회 논문집
• /
• pp.838-849
• /
• 2010

It is inevitable to control the systematic failure to obtain the software safety integrity of embedded software installed in rolling stock. Because it is not possible to assess systematic failure integrity by quantitative methods, SILs are used to group documentation, methods, tools and techniques throughout software development lifecycle which, when used effectively, are considered to provide an appropriate level of confidence in the realization of a system to a stated integrity level. Normally, safety approval process is through generic product, generic application and specification application for. For safety approval on generic application of software based system, it is required to apply the certified software processes from the planning stage for the assigned SIL. As such, we will develop project specific application with high safety integrity within time limit of contractual delivery schedule through software assessment to the modified area with the re-use of certified software module and documentation. At this point, Hyundai Rotem has developed software processes applicable to support SIL 4 based on EN50128 which was assessed and certified by TUV SUD. This paper introduces the Hyundai Rotem's detailed approach and prospective action to achieve software safety integrity level.

• 유통과학연구
• /
• 제13권1호
• /
• pp.57-70
• /
• 2015

Purpose - Open source software has high utilization in most of the server market. The utilization of open source software is a global trend. Particularly, Internet infrastructure and platform software open source software development has increased rapidly. Since 2003, the Korean government has published open source software promotion policies and a supply promotion policy. The dynamism of the open source software market, the lack of relevant expertise, and the market transformation due to reasons such as changes in the relevant technology occur slowly in relation to adoption. Therefore, this study proposes an assessment model of services provided in an open source software service company. In this study, the service level of open source software companies is classified into an enterprise-level assessment area, the service level assessment area, and service area. The assessment model is developed from an on-site driven evaluation index and proposed evaluation framework; the evaluation procedures and evaluation methods are used to achieve the research objective, involving an impartial evaluation model implemented after pilot testing and validation. Research Design, data, and methodology - This study adopted an iteration development model to accommodate various requirements, and presented and validated the assessment model to address the situation of the open source software service company. Phase 1 - Theoretical background and literature review Phase 2 - Research on an evaluation index based on the open source software service company Phase 3 - Index improvement through expert validation Phase 4 - Finalizing an evaluation model reflecting additional requirements Based on the open source software adoption case study and latest technology trends, we developed an open source software service concept definition and classification of public service activities for open source software service companies. We also presented open source software service company service level measures by developing a service level factor analysis assessment. The Behavior-Structure-Evolution Evaluation Model (BSEM) proposed in this study consisted of a rating methodology for calculating the level that can be granted through the assessment and evaluation of an enterprise-level data model. An open source software service company's service comprises the service area and service domain, while the technology acceptance model comprises the service area, technical domain, technical sub-domain, and open source software name. Finally, the evaluation index comprises the evaluation group, category, and items. Results - Utilization of an open source software service level evaluation model For the development of an open source software service level evaluation model, common service providers need to standardize the quality of the service, so that surveys and expert workshops performed in open source software service companies can establish the evaluation criteria according to their qualitative differences. Conclusion - Based on this evaluation model's systematic evaluation process and monitoring, an open source software service adoption company can acquire reliable information for open source software adoption. Inducing the growth of open source software service companies will facilitate the development of the open source software industry.

• 정보처리학회논문지:소프트웨어 및 데이터공학
• /
• 제8권6호
• /
• pp.223-234
• /
• 2019

첨단 무기체계들이 고도로 연동되어 수행되는 네트워크 중심전에서는 사이버 공격이 전쟁의 승패를 좌우하는 커다란 위협으로 대두되었다. 또한 최신예 전투기로 발전할수록 증가하는 소프트웨어 의존도는 사이버 공격에 대한 전투기 소프트웨어의 강화된 보안대책을 요구하고 있다. 본 논문에서는 항공기 감항 보안 인증 표준인 DO-326A를 적용함에 있어 전투기의 특성 및 운용환경을 반영하여 위험기반 보안위협 평가 프로세스를 설계한다. 이를 위하여 DO-326A의 감항 보안 인증 프로세스의 보안위협 평가 단계에서 전투기 보안위협을 도출하고 사이버 공격의 발생 가능성과 전투기에 미치는 영향력의 관점에서 위협을 점수화하며 보안위험 심각도를 결정하는 단계를 추가하여 적용한다.