• Journal of KIISE:Software and Applications
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• v.36 no.1
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• pp.30-44
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• 2009

Devices of home network system have different control data formats according to each product company. Therefore, types or protocols of digital devices are various. Also, interaction operating environments are different among various devices. These characteristics of home network system don't support sufficiently functionalities such as data comparability, concurrent control, dynamic plug-in, and so on. That is, the degree of reusability of home network system is very poor. This paper proposes a framework which can be coverable to the scope of reusability widely and a design technique based on framework in order to improve reusability. That is, we extract various parts of home network systems as variation points, classify and define these as variation types, propose a framework which can be reusable those, and proposes a design technique of variability to improve reusability. Finally, proposed technique can be reusable to various domains by applying proposed reusability framework into real home network system's design.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.466-468
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• 2004

개발한 자산의 재사용성을 증대시키기 위해서는 프로덕트 라인에서 가장 중요한 제품간의 공통성과 가변성을 식별하고 이를 표현하는 기술이 잘 정의되어 있어야 한다 이를 위해서는, 다양한 제품의 요구사항을 만족시켜 줄 수 있도록 자산을 모델링 할 때 가변성을 제공하는 부분을 명세화하고 이를 독립적인 모델로 관리함으로써 자산의 재사용성을 향상시키는 방법이 필요하다. 본 논문은 핵심 자산 개발시 정의하는 결정 모델의 유형을 정의하고 결정요소들 간의 관계를 추적할 수 있는 지원 도구의 프로토타입을 제안한다

• The KIPS Transactions:PartD
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• v.15D no.6
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• pp.803-814
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• 2008

Product line architectures include variable parts to be selected according to product specific requirements. In order to derive architectures that are valid for a particular product from product line architectures, variabilities of product line architectures must be systematically managed. In this paper, we adopt an approach to variability management of product line architectures through an explicit mapping between a feature model and product line architecture models. If this mapping is incorrect or there exists inconsistency among product line architectural elements, variabilities of product line architectures cannot be managed correctly. Therefore, this paper formally defines product line architectural models in terms of conceptual, process, deployment, and module views, and mapping relationships between the feature model and the architectural models. Consistency rules for correct variability management of product line architectures are defined in terms of consistency in each of product line architecture model, consistency between different architectural view models, and consistency between a feature model and product line architectural models. These consistency rules provide a theoretical foundation for deriving valid product architecture from product line architectures.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10a
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• pp.501-503
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• 2000

컴포넌트가 보편화되고 있는 현 시점에서 컴포넌트의 사용은 증가하고 있다. 이러한 컴포넌트들을 효과적으로 재사용하기 위해서는 컴포넌트 설계와 재사용의 올바른 분석과 설계가 요구된다. 재사용의 요구사랑을 만족하기 위해서 컴포넌트의 설계시에 발생할 수 있는 기능과 적합성의 불일치를 줄이고자하는 연구가 활발히 진행되고 있다. 본 논문에서는 공통성과 가변성 분석을 하기 위하여 도메인의 특성이 서비스 중심적인 관점인 경우에 대하여 접근을 했다. 이를 위하여 인터페이스의 추출이 선행되어야 하고, 추출된 인터페이스를 중심으로 두 도메인에 존재하는 공통성과 가변성을 추출하였다.

• The KIPS Transactions:PartD
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• v.9D no.5
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• pp.837-846
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• 2002

When you develop component, you can offer reusability and extension by analyzing commonality and variability about attribute and behavior. Therefore Component that analyzing commonality and variability are use for the purpose of reducing discord of function and adaptedness. I wish to research reusability and extension of component by analysis commonality and variability of component that exist by domain in this paper, extractfunctionofcomponentbybehavioranalysis.

• Proceedings of the Korean Information Science Society Conference
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• 2006.06c
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• pp.139-141
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• 2006

제품계열공학에서 feature diagram(FD)은 개발자의 직관이나 도메인 전문가의 경험에 근거하여 작성되어, feature간의 공통성 및 가변성분석 기준이 불명확하며 비정형적인 feature의 공통성 및 가변성 분석으로 인한 stakeholder의 공통된 이해가 부족한 문제점을 내포하고 있다. 따라서, 본 논문에서는 이를 해결하기 위하여 공통된 feature의 이해를 위해 feature 속성리스트에 기반한 메타 feature모델과 feature간의 의미유사성관계를 이용한 온톨로지를 적용한 공통성 및 가변성 분석모델을 제안한다.

• The KIPS Transactions:PartD
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• v.15D no.5
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• pp.621-628
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• 2008

Many of today's businesses need IT system's flexibility for on-demand business which can be rapidly adapted to environment changes. Service oriented architecture (SOA) provides the infrastructure which makes business flexibility possible under the on-demand operating environment. Therefore, to satisfy these requirements, new approach for assuring business flexibility and enhancing reuse is needed. In this paper, we propose an approach for developing a business process family model (BPFM) in which the variabilities in business process family can be explicitly represented by using the variability analysis method of software product line. In addition, we describe the supporting tool for this approach. It can model the BPFM and generate automatically BPMs through decision and pruning process from BPFM. By using our approach, the business and its IT system can correspond to business environment changes rapidly and efficiently.

• Journal of KIISE:Software and Applications
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• v.33 no.2
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• pp.154-166
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• 2006

Product Line Engineering(PLE) is a software reuse paradigm that core assets are defined using common features in a domain and are instantiated in various applications. To apply the core asset effectively, variants which satisfy application requirements are extracted and the core asset should be also instantiated based on the variants. For the work, variability on architecture and components should be extracted exactly and an instantiation process and guidelines should be defined based on this variability In this paper, we define variability types depending on core assets elements and describe artifact templates related to tile variability. We also propose a systematic process which uses defined core assets including variability and verify practicability of the proposed process and variability expression through doing ease study. If utilizing with the proposed process in PLE, it can be feasible to model concrete core asset and variability and to utilize practical application engineering.

• Ecology and Resilient Infrastructure
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• v.9 no.4
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• pp.207-217
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• 2022

The purpose of this study was to understand and develop various environmental designs to play a key roles in urban design, so that public green spaces remain vital with future changes. Variability in space, ecology, and society were analyzed based on research of variable environmental spaces in 11 selected studies conducted locally and abroad since the 2010s. Moreover, landscape characteristics, design methods, and design strategies were analyzed accordingly for each case. The results of the study showed that variability in landscapes provided various possibilities for spatial change and satisfied people's functional needs for spatial use. In addition, variable environmental design greatly compensated for the defects by solving the issues associated with fixed landscapes by increasing the flexibility of use and adaptability to the environment. This study showed that variable design is applicable to public green spaces; environmental stress; and variability in architecture, the environment, and landscaping, and it contributes to enhancing the sustainability and resilience of the environment.

• Journal of Internet Computing and Services
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• v.6 no.4
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• pp.21-35
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• 2005

Software product-lines is the software development paradigm to attain the rapid development of quality applications by customizing the reconfigurable components and composing them based on predefined software architectures. Recently various methodologies for the component-based product lines are proposed, but these don't provide the specific implementation techniques of the components in terms of variability resolution mechanism. In other hand, the several approaches to implement the component supporting the variabilities resolution are developed, but these don't define the systematic analysis and design method considering the variabilities from the initial phase. This paper proposes the integration of PLUS, the one of product line methodologies extending UML modeling, and component code generation technique in order to increase the efficiency of producing the specific product in the software product lines. In this paper, the component has the hierarchical architecture consisting of the implementation elements, and each implementation elements are implemented as XSLT scripts. The codes of the components are generated from the feature selection. Using the microwave oven product lines as case study, the development process for the reconfigurable components supporting the automatic variability resolution is described.