• The KIPS Transactions:PartD
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• v.13D no.2 s.105
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• pp.251-258
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• 2006

Aspect-Oriented Software Development is new software development method. It has many advantages related to software performance, maintenance and repair. Also it offers modularization method to a existing programming language for secondary function such as security and fault tolerance. But the present problem is that we have to use new aspect-oriented programming language. Further more when we apply Aspect to legacy system, we have to recompile the source code in order to build software system based on AOSD. In this paper, we propose and design Connector that can be composed with Aspect in legacy system dynamically. To elaborate this work, we use the information of operations about Core and Aspect, and the information of pointcut described with XML. We validate that the proposed Connector has features such as no need of new compiler, no recompilation and no modification of legacy system through case study.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06b
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• pp.520-525
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• 2008

SCA(Software Communications Architecture)는 SDR(Software Defined Radio)를 위한 표준 플랫폼으로, 어떤 플랫폼에서도 SCA 표준을 이용하여 구현된 시스템이라면 SCA 규격을 지켜 작성된 소프트웨어 모듈을 실행할 수 있도록 하고 있다. SDR은 기존의 하드웨어로 구현하였던 무선 통신 시스템을 모두 소프트웨어로 구현하고자 하는 기술이지만, 임베디드 시스템의 경우에는 프로세서의 성능이 현저히 떨어지기 때문에 실시간 신호 처리를 보장할 수가 없다는 문제점이 있다. 따라서, 무선통신의 성능을 보장하기 위해서는 범용 프로세서와 함께 DSP나 FPGA와 같은 특화된 하드웨어의 사용이 필요하게 되었다. 이러한 경우에는 웨이브폼 어플리케이션 작성을 위해서 하드웨어와 소프트웨어의 파티셔닝도 고려해야 한다. 본 논문에서는 SCA 플랫폼에서의 웨이브폼 어플리케이션을 빠르게 생성하는 방법을 제안하여 다양한 하드웨어를 사용하는 플랫폼에서의 최종 웨이브폼 어플리케이션을 위한 설계 공간 탐색(Design space exploration)을 도와, 내장형 시스템에서도 효율적으로 실행 가능한 웨이브폼 어플리케이션을 개발할 수 있도록 한다.

• Journal of KIISE:Software and Applications
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• v.31 no.4
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• pp.394-402
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• 2004

When two or more entities interact with each other as when they collaborate or communicate, the degree of correctness of the interactions is called interoperability. In software, the necessity of interoperability testing arises when we build a software system in which multiple interacting software entities are employed to perform the function or task of the system. These days as software is more and more being used to solve complex problems and through networking functions of software can be distributed to provide abundant services, the more the interoperability testing becomes important. This paper provides the framework and methodology for interoperability testing by discussing the fundamental concepts and principles that underlie interoperability and interoperability testing and the approaches for practicing interoperability testing.

• Proceedings of the Korea Multimedia Society Conference
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• 1998.04a
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• pp.432-437
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• 1998

컴퓨터 시스템들이 인간 생활의 많은 부분에서 사용되어지면서 하드웨어 또는 소프트웨어 시스템의 안전성 문제에 대한 관심이 커지고 있다. 소프트웨어 시스템에 있어서 각각의 소프트웨어 개발 단계가 가지는 특성이 다르므로 안전성 활동들도 그 활동 관점이나 방법이 달라져야 할 것으로 판단된다. 소프트웨어의 안전성 평가의 방법론, 안전성을 분석하기 위한 결함분석 기법들에 대한 고찰을 본 연구의 기반으로 하여 소프트웨어 라이프사이클 동안에 안전성 확보를 위한 최선의 활동의 방안들에 대하여 연구하였다.

• The Transactions of the Korea Information Processing Society
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• v.4 no.11
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• pp.2874-2890
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• 1997

This paper describes a methodology for translation of concurrent software expressed in operating system (OS) calls to Ada. Concurrency is expressed in some legacy software by OS calls that perform concurrent process/task control. Examples considered in this paper are calls in programs in C to Unix and calls in programs in CMS-2 to the Executive Service Routines of ATES or SDEX-20 other software re/reverse engineering research has focused on translating the OS calls in a legacy software to calls to another OS. In this approach, the understanding of software has required knowledge of the underlying OS, which is usually very complicated and informally documented. The research in this paper has focused on translating the OS calls in a legacy software into the equivalent protocols using the Ada facilities. In translation to Ada, these calls are represented by Ada equivalent code that follow the scheme of a message-based kernel oriented architecture. To facilitate translation, it utilizes templates placed in library for data structures, tasks, procedures, and messages. This methodology is a new approach to modeling OS in Ada in software re/reverse engineering. There is no need of knowledge of the underlying OS for software understanding in this approach, since the dependency on the OS in the legacy software is removed. It is portable and interoperable on Ada run-time environments. This approach can handle the OS calls in different legacy software systems.

• Journal of KIISE:Software and Applications
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• v.27 no.6
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• pp.595-606
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• 2000

Software metrics evaluate the development process, measure the software development effort, and control the software quality effectively. Moreover in a current status to emphasize reusability, it is necessary to study of cohesion and coupling that plays an important role in evaluating reusability. Object oriented methodology to use the concept like encapsulation, inheritance, and polymorphism demands metrics that are different from existing procedural methodology, so a study for object oriented metrics is in progress at the present time. In this paper, we propose cohesion and coupling metrics for object oriented program, evaluate the proposed metrics by using the complexity properties proposed by Weyuker and Briand, and extract cohesion and coupling from C++ code.

• Proceedings of the Korea Database Society Conference
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• 1999.10a
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• pp.153-163
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• 1999

소프트웨어 프로젝트가 대규모화되고 복잡해짐에 따라 체계적인 품질보증이 더욱 필요해지고 있다. 고품질의 소프트웨어를 개발하기 위해서는 작업산출물(work product)에 대한 품질보증뿐 아니라 개발 프로세스(process)에 대한 품질보증 활동을 동시에 수행해야만 목표하는 품질에 접근할 수 있다. 그러나 소프트웨어 품질보증은 다양한 품질특성이나 개발 주체간의 시각 차이에 따라 달라지는 가변성을 지니고 있어 품질보증에 적지 않은 어려움이 내재되어있다. 이러한 품질보증의 어려움이 소프트웨어 품질을 저해하는 원인으로 작용하여 기업의 품질 경쟁력을 떨어뜨리고 있다. 본 연구는 이러한 품질보증 활동의 어려움을 해결하고 나아가 품질향상을 달성하기 위한 방법을 개발하고자 하였다. 품질향상을 위해서 품질보증 활동을 보다 계획적이고 체계적으로 수행하기 위한 SQA(Software Quality Assurance) 방법론을 개발하였다. 일반적으로 방법론이란 모든 프로젝트에 그대로 적용하기란 어렵다. SQA 방법론 또한 프로젝트의 특성이나 조직 특성에 따라 적절히 커스터마이징(Customizing)되어 사용하여야만 효과성을 제고할 수 있다. 그리하여 본 SQA 방법론에서도 품질보증활동을 체계적으로 지원하기 위해 수행되어야할 품질보증 태스크가 리파지토리로 구성되어 있다. 프로젝트 특성 둥에 따라 필요한 품질보증 태스크를 이 리파지토리로부터 선정하여 활용할 수 있게 된다. 마지막으로 프로젝트 특성 등에 따라 필요한 품질보증 활동을 커스터마이징하기 위한 전문가시스템 접근방법을 제시한다.

• Journal of KIISE
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• v.44 no.5
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• pp.510-521
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• 2017

The software development process (SDP) plays an important basic role in software engineering education. Every software is developed in accordance with a specific SDP which contains all phases of software development. SDP education helps students to understand the overall techniques and the process of software engineering. This paper introduces a software development methodology (i.e., process) - 'OOPT (Object Oriented Process with Traceability),' which was proposed for use in university software engineering classes. The OOPT is based on object-oriented software development, and it defines concrete requirements as well as outputs of each process/phases. It also contains the unit/system testing and a traceability analysis. We have used the OOPT in software engineering classes at Konkuk university for eight years. This paper conveys our experience as well as future extension and improvement plans.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.2
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• pp.401-414
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• 2008

The object of quality test for weapons system embedded software is support about implement of high quality system which coincided with requirements of weapons system embedded. There are some examples which developed quality evaluation methodology, evaluation method for general embedded software. But the concrete system for weapons system embedded software was not constructed yet. Recently, various weapons system embedded software were developed and used but they require the effort for the quality. In this paper, we developed the evaluation modules and the quality test tables which can evaluate based on ISO/IEC 12119 for weapons system embedded software evaluation.

• Journal of the Korea Society of Computer and Information
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• v.9 no.3
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• pp.103-107
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• 2004

Software Reuse have the advantages of increasing productivity and software reliability reducing the period for software development and cost, sharing the information which is related to software. Vertical Reuse is the method which reuse is restricted to a specific area and can increase the reliability of software reuse due to high understanding of related area. Bottom-up approach of Vertical Reuse classifies the related information and s the results. It allows the reuse of not only pure source code but also informal documents.