• The KIPS Transactions:PartD
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• v.12D no.4 s.100
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• pp.617-626
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• 2005

To design a software system many architecture styles have to be combined to construct the overall architecture of the system What to choose among various architecture styles or architectural approaches depends on the fact of what kind of functional or non-functional quality requirements the system should satisfy In this study, we define the method to choose suitable architectural approaches by the satisfaction level of system requirements that is evaluated through estimation about technical parts of architectural approaches, and verify the evaluation method by the case study that apply the evaluation method to choose architectural approaches for message system.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06b
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• pp.107-111
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• 2010

급변화하는 비즈니스 환경에 가장 빠르게 대응할 수 있고, IT 자원의 상호운용성 및 재활용성을 증대할 수 있는 SOA 기반 소프트웨어 시장이 급격히 증가함에 따라 SOA 기반 시스템 품질 평가 방법들이 연구되고 있다. 그러나, SOA에 융합된 BI 관점의 평가 방법은 연구가 부족하다. 본 연구에서는 ISO/IEC 9126국제 표준을 참조하여 SOA와 융합된 BI의 품질 평가 특성을 제시하고, 사례 연구를 통해 품질 평가 방법을 제안 및 검증한다. 본 연구를 통해, BI를 SOA와 융합하는 과정에 품질 특성을 고려하여 구현 및 융합함으로써 소프트웨어의 품질 향상을 유도하고 완성된 소프트웨어의 품질 평가에 활용될 것으로 기대한다.

• Communications of Mathematical Education
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• v.9
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• pp.317-325
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• 1999

수식에 의한 컴퓨터 그래픽의 입력과 출력에 관한 프로그램의 개발은 수학의 역동화, 인간화, 보편화에 기여하고 있다. 현실적으로 해결해야할 문제와 수식에 의한 해답이 전부인 현재의 수학을 소프트웨어를 활용하여 그래픽 기능을 첨부하면 움직이는 수학을 가시화 할 수 있다. 컴퓨터 프로그램에 의한 수학의 실현은 수학자들 모두의 염원으로 전세계적으로 활발한 연구가 진행되고 이는 것이다. 수학의 원리와 응용성을 가미한 수학적 그래픽의 발전은 새로운 천년을 장식할 새로운 학문분야로 등장하고 있다. 기초과학의 여러 자료를 분석, 검토하여 그래픽으로 조립하는 작업은 수학적 그래픽의 힘으로 가능하며, 실험과 실습의 양상을 바꾸어 놓고 있다. 건축이나 토목 또는 전기전자 학과의 응용수학은 새로운 소프트웨어의 출현으로 컴퓨터 강의로 전환되고 있으며 수학 그 자체로 전산기능을 강화하는 방향으로 개편되고 있다. 수학 교과 내용의 전산 프로그램화와 컴퓨터 활용 수학 학습은 거부할 수 없는 시대적 요구이다. 이 연구에서는 새로운 천년의 시작은 컴퓨터 프로그램에 의한 완성된 그래픽의 연출이라는 시각에서 수식에 의한 컴퓨터 그래픽의 기본 방향을 제시하고 있다. 2차원 평면이나 3차원 공간에 이와 같은 다변수함수의 역할을 구현함으로써 다양한 그래픽을 영상화할 수 있다. 다중화면의 연출, 다단계화면의 조합, 다단계다중화면의 영상화 등은 수학에 의한 애니메이션의 기초가 된다. 평면도형의 기본동작을 화면에 구체화시키는 Table 기능을 실제로 구현한다. 연습과 실행 그리고 재구성을 반복하여 조형미를 갖춘 수학적 그래픽을 실현한다. 수학의 학습에 적용할 가치가 있는 학습조형물을 개발하고, 프로그램의 단순화에 노력한다. 미분기하학의 여러 공식을 이용하여 숨어 있는 그림을 표출하며 미분방정식의 해가 갖는 그래픽의 묘미를 형상화한다. 수식에 의하여 출력된 그래픽의 여러 효과를 응용수학에 활용할 수 있도록 재조립하는 과정을 걸쳐 완성하는데 이 연구의 참된 의미가 있다.

• Journal of Technology Innovation
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• v.23 no.3
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• pp.287-316
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• 2015

The trend of R&D in automotive electronics industry is shifting towards ECU(Electronic Control Units) based on softwares which requires technology convergence to accommodate customers' requests on safety and convenience. The trend requires systemized R&D paradigm which reflects increased role of softwares. As the softwares became the core components in automotive innovation, there has been wide range of efforts to introduce software R&D processes and methodologies such as CMMI, A-SPICE and ISO-26262 etc. However, R&D departments in the industry fields are confronted with conflicts which arise from discrepancies among the individual process. In this study, we focus on suggesting our integrated and systematic R&D process with the aim of alleviating the conflicts and confusions. For this purpose, we analyze the cases of Korean automotive electronics companies to compare various R&D processes in the field and their relationships. Based on the analysis, we derive and suggest our model of R&D process which effectively integrate ISO/TS-16949 for manufacturing quality and CMMI, A-SPICE, ISO-26262 for system with softwares.

• Journal of KIISE:Software and Applications
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• v.27 no.4
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• pp.315-326
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• 2000

As Internet is being widely used as an infra of distributed applications, the most of today's softwares are changing into Internet-based distributed applications. The development methods using the middleware, like CORBA ORB, make the development of the web-based software easy. However, the performance verification method useful for an optimized software distribution is not provided at software development. Additionally, monitoring methods and metrics for dynamic load-balancing are not presented at run-time. This paper presents the method to monitor the message between objects, load metric, and metrics for load-balancing. To calculate a load of a node, we define events occurred between applications, time between the events, then extract the data related to a load. And we derive formula calculating the load from the extracted data. Then using the formula, we present the metrics for dynamic load-balancing. Moreover, we observe the utilization and efficiency of the monitoring algorithm, load metric, and load-balancing metrics.

• Journal of Internet Computing and Services
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• v.15 no.1
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• pp.13-27
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• 2014

Agile methodologies have gained recognition as efficient development processes through their quick delivery of software, even under time constraints. However, like other agile methods such as Scrum, Extreme Programming (XP) and The Dynamic Systems Development Method (DSDM), Feature Driven Development (FDD) has been criticized due to the unavailability of security elements in its twelve practices. In order to examine this matter more closely, we conducted a systematic literature review (SLR) and studied literature for the years 2001-2012. Our findings highlight that, in its current form, the FDD model partially supports the development of secure software. However, there is little research on this topic, as detailed information about the usage of secure software is rarely published. Thus, we have been able to conclude that the existing five phases of FDD have not been enough to develop secure software until recently. For this reason, security-based phase and practices in FDD need to be proposed.

• Journal of Digital Contents Society
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• v.15 no.1
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• pp.11-18
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• 2014

The strength of our country is based on high-speed networks to build a nationwide health information network to improve the quality of health care is needed. However, nature of the medical services in the hospital medical record form, so that all departments characterize each medical department, a common format that can be used for all disease is a very difficult challenge. This study is one of the ways to improve this priority issue on health information sharing medical information system(PACS/HIS) information linkage between the problem of information, compatibility and security issues derived. The problem is derived from the requirements of theorem 3 to 6 items. This is effective in order to improve sharing of medical information for the purpose of designing the software system. Sharing of medical information software system design are derived from stakeholders, requirements analysis, architecture design, software framework, configuration, architecture evaluation process. This study is based on the medical information standardization environmental diagnosis of a medical information system design. Software design philosophy is based on a new framework for deriving the function and mechanism made up.

• The Journal of the Convergence on Culture Technology
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• v.5 no.1
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• pp.211-217
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• 2019

The term project executed at the university is a learner-centered learning method in which students select their topics, draw up their plans, and produce results by themselves based on the content they have learned during the semester. Through the term-end project of the subjects relating software, students learn various techniques for the programming language and produce the outcomes of their project by the creative program development process. However, non-computer majors who take software course as liberal arts subjects have difficulty in understanding the programming language, so it is necessary to provide feedback from their professor for encouraging students in carrying out their projects smoothly. Therefore, a feedback method by the discussions between a professor and learners that can be applied to the term-end project of programming subject for the non-computer majors is proposed. The proposed method was apply to the actual term-end projects and the meaningful results were confirmed through the analysis of the project processes and outcomes.

• Journal of Digital Convergence
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• v.10 no.1
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• pp.435-443
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• 2012

Online game has been made of total products which user was given the experimental properties of a variety such as fun and the total of hardware and software products. Through this processes, The company earned a profitable benefits, in addition to the user was given satisfactory service. In this sense the parts of the game production process, the service earlier in the game testing a variety of ways needs to the user through the game as a condition for providing the content can be. Contact a professional game testing job is done systematically through the game's completion of a game developed by companies to see that service to complement previous significant. In this study, search for independent testing cases and the systematical cases as experts needs a range of the testing services.

• The Journal of the Korea Contents Association
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• v.15 no.3
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• pp.1-10
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• 2015

Generating chord score based on melody is essential for composition and arrangement, while it is picky for amateurs who do not have harmonics knowledges. To solve this problem, we developed automatic chord score generating program, ACGP. Based on genetic algorithm, it successfully reflects diverse hormonic factors and the mood of the music. User interface was also implemented so that anyone can use the program conveniently. Additional analysis was conducted to prove the utility of ACGP.