• KIPS Transactions on Software and Data Engineering
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• v.6 no.8
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• pp.391-400
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• 2017

Software architecture plays a key role in satisfying non-functional requirement (NFR), i.e. quality requirements and constraints. Architecture design methods and tactics for conventional NFR are largely available in literatures. However, the methods for the target system-specific non-conventional NFRs are not readily available; rather architects should invent the design methods from their experiences and intuitions. Hence, the hardship to design architectures for non-conventional NFRs is quite high. In this paper, we provide a systematic architecture design methodology for non-conventional NFRs. We provide a five-step process, and detailed instructions for the steps. In the process, we treat the traceability among artifacts and seamlessness as essential values for supporting effective architecture design. We apply the methodology on designing architectures for a platform software system. We believe that the proposed methodology can be effectively utilized in designing high quality architectures for non-conventional NFRs.

• Proceedings of the Korea Society for Simulation Conference
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• 2005.05a
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• pp.134-138
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• 2005

기능적 제한이 있는 하나의 웹 서비스는 다른 기능의 여러 웹 서비스들과 다양한 형태로 조합되어 웹 프로세스(Web Process)를 만들게 된다. 이를 통해 개발에 소요되는 비용과 시간을 줄이고 사용자의 요구사항을 만족시키는 서비스의 유연한 조합이 가능하다. 웹 프로세스의 조합 및 통합 시에 중요한 것은 보다 효과적이고 높은 품질의 서비스를 제공할 수 있도록 하는 것이다. 웹 서비스의 조합과 QoS(Quality of Service) 평가 및 보장에 관한 기존 연구는 사용자가 자신의 QoS 요구사항을 만족하는 웹 서비스를 직접 찾아야 하고, 조합된 웹 프로세스가 원하는 QoS를 만족할 때까지 반복적인 수작업을 수행해야 하는 비효율적인 측면이 있었다. 본 논문에서는 사용자가 조합한 웹 프로세스의 QoS를 분석하고 사용자의 QoS 요구사항에 부합하는 웹 서비스를 지능적으로 찾아주는 QoS 기반 웹 서비스 조합 방법론 및 지원도구를 소개한다. 제안된 도구를 통해 Activity Diagram의 형태로 프로세스를 구성하고 구성된 프로세스의 QoS를 분석하여 QoS 요구사항을 만족하는 웹 프로세스를 효율적으로 구성할 수 있다.

• KIPS Transactions on Software and Data Engineering
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• v.4 no.4
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• pp.161-168
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• 2015

It is difficult to provide proper cloud services for cloud users, because the number of cloud services are increasing and the type of cloud services are diversifying. To overcome this problem, the concept of cloud service broker is presented to mediate cloud services between cloud providers and tenant. The most important role of cloud service broker is to finding cloud services that fulfill requirements of tenant. However, current existing cloud service broker conduct passive requirements analysis process with cloud service expert's assistance. In addition, the systematic functional and non-functional requirement analysis is insufficient. Therefore, we need the new methods for requirement analysis to find nearest service that matches with requirement of tenant. In this paper, we apply pairwise comparison from AHP method to analyze requirement automatically and systematically. It calculates score of service by comparing requirement with service specification, calculating importance rate, and so on.

• Electronics and Telecommunications Trends
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• v.15 no.6 s.66
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• pp.35-44
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• 2000

우리 나라에서는 IMT-2000 상용서비스를 2002년에 제공할 것을 추진하고 있다. 따라서 국내 이동통신 장비업체들은 IMT-2000 시스템 개발에 더욱 박차를 가하고 있다. 국내에 구축되는 IMT-2000 시스템에는 비동기 시스템이 포함될 것이며, IMT-2000 서비스에서 제공하고자 하는 멀티미디어 통신이 범 세계적으로 가능하기 위해선 모든 관련 장비가 정확히 구현되어야 한다. 그래서 본 고에서는 우선, 비동기 방식인 WCDMA 단말기가 정확히 구현되었는지를 확인하기 위해서 WCDMA 단말기의 기능 및 성능평가를 위한 시험 요구사항에 대하여 분석하였다.

• Journal of the Korea Society of Computer and Information
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• v.25 no.7
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• pp.27-37
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• 2020

In this paper, we propose the methodology based on data-driven approach using Natural Language Processing and Machine Learning for classifying requirements into functional requirements and non-functional requirements. Through the analysis of the results of the requirements classification, we have learned that the trained models derived from requirements classification with data-preprocessing and classification algorithm based on the characteristics and information of existing requirements that used term weights based on TF and IDF outperformed the results that used stemming and stop words to classify the requirements into functional and non-functional requirements. This observation also shows that the term weight calculated without removal of the stemming and stop words influenced the results positively. Furthermore, we investigate an optimized method for the study of classifying software requirements into functional and non-functional requirements.

• Journal of Digital Contents Society
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• v.15 no.1
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• pp.45-52
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• 2014

All medical information system stakeholders and the environment exists. Medical information systems for development in these environments and non-functional requirements, functional requirements and quality goals are to be met. In order to achieve these goals in a variety of ways currently being made to develop information systems and various applications are emerging. However, the process of developing these health information systems meet the basic requirements and does not consider that from the point of view should not be separate. This study of the development of health information systems related to quality measurement indicators for the analysis software architectures, and medical information, information quality evaluation of service quality information associated indicators evaluation are offered. This way of associated indicators for the quality of the output sum and analyze the trends in software architecture u-Healthcare should be available for assessment. Quality score compared with pre-set goals for achievement and satisfaction levels of analysis further support the cause excerpt field use in analysis and improvement is possible.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.13 no.5
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• pp.57-67
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• 2003

Security Policy Model is a structured representation using informal, semiformal or formal method of security policy to be enforced by TOE. It provides TOE to get an assurance to mitigate security flaws resulted from inconsistency between security functional requirements and functional specifications. Therefore, Security Policy Model has been required under an hish evaluation assurance level on an evaluation criteria such as ISO/IEC 15408(Common Criteria, CC). In this paper, we present an evaluation method for security policy model based on assurance requirements for security policy model in Common Criteria through an analysis of concepts, related researches and assurance requirements for security policy model.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.472-474
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• 2004

내장형 실시간 시스템은 점차 소형화, 다기능화 하여 그 복잡도가 증가하고 있다. 이로 인해 소프트웨어 아키텍처의 적용이 요구되고 있다. 아키텍처를 적용하기 위해서는 내장형 실시간 시스템에 적합한 아키텍처를 선정해야 하며, 선정한 아키텍처는 처리속도와 같은 비기능적 요구사항을 만족할 수 있어야 한다. 이에 본 논문에서는 내장형 실시간 시스템 개발 중 아키텍처 선정 시 처리속도에 기반하여 아키텍처를 선정할 수 있는 성능평가 절차와 고려사항을 제안한다. 이를 통해 사용자가 제시한 성능적 요구사항에 적합한 아키텍처를 선정 할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04b
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• pp.1519-1522
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• 2002

최근 비연결지향형(Connectionless)의 IP 상에 연결지향형(Connection-oriented)의 LSP 를 지원하는 MPLS(Multi-Protocol Label Switching) 서비스에 대한 관심이 증가되고 있다. 이는 트래픽 엔지니어링(TE: Traffic Engineering)과 Qos(Quality of Service) 제공 등의 향상된 서비스에 대한 요구사항이 증가하면서, 이에 적합한 차세대 인터넷 서비스의 효율적인 제공 방안으로 IETF 에서 표준화하고 있는 MPLS 기술이 대두되고 있기 때문이다. 이러한 사용자의 요구사항을 만족하기 위하여 한국전자통신 연구원에서는 ACE2000 MPLS 시스템을 개발했으며, 초고속망에 적용되는 MPLS 시스템을 관리하기 위한 관리 시스템을 개발하였다. 본 논문에서는 SNMP(Simple Network Management Protocol) 기반의 MPLS 망 관리 시스템과 트래픽 엔지니어링 관리 기능을 중심으로 관리 대상, 관리 수행 절차 등을 설명한다.

• Journal of KIISE:Software and Applications
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• v.33 no.2
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• pp.186-200
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• 2006

Analysis model focuses only on functional requirements and postpones nonfunctional requirements and implementation specific issues until subsequent design activities are undertaken. Based on the analysis models, the design activities are performed by refining and clarifying the analysis models. Thus, the quality of analysis models has a vast impact on the design models. Therefore, much effort should be taken to build correct analysis model. In this paper, we propose a set of structural constraints that analysis models of typical object-oriented development methods should satisfy. Three kinds of constraints are proposed: class related constraints, relation related constraints, and usage related constraints. For each constraint, formal definition and description with OCL are provided. In addition, through a case study with two medium-sired industrial systems, we demonstrated that the proposed approach can help to identify and correct serious deficiencies in object-oriented analysis models.