• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1547-1550
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• 2012

소프트웨어 제품라인의 핵심 자산을 개발할 때 제품라인에 포함된 휘처 사이의 관계를 고려하여 핵심 자산을 개발하지 않으면, 한 휘처의 변화가 핵심 자산의 많은 부분에 영향을 미칠 수가 있고, 미처 고려하지 못한 휘처 관계에 의해 제품이 동작중에 의도치 않은 문제가 발생할 수 있다. 휘처 사이의 존재할 수 휘처 관계 타입을 미리 알고 있다면, 실제 휘처 관계를 분석할 때 도움이 되고, 각 타입별로 어떻게 핵심 자산을 개발해야 하는지 가이드라인을 제시할 수 있다. 기존에 많은 연구자들이 휘처 관계 타입을 제시하였지만 아직까지 제안된 휘처 관계 타입들을 비교하고 분석하는 연구가 이루어지지 않았다. 이에 본 논문에서는 지금까지 제안된 휘처 관계 타입들을 살펴보고, 제안된 관계 타입들을 비교 및 논의하고자 한다. 또한 기존에 제안된 휘처 관계 타입 중 위쳐 사이의 관계로 보기 어렵거나 중복이 되는 타입을 제외하여 휘처 관계 타입 리스트를 정리 및 제안하였다.

• Journal of Software Engineering Society
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• v.26 no.2
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• pp.31-44
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• 2013

Software product line (SPL) engineering is a reuse paradigm that helps organizations increase productivity and improve product quality by developing product from reusable core assets. In SPL, product configuration is the process of selecting the desired features and feature attributes for a given product from a feature model. In order to develop a successful product, feature and feature attribute selection that can achieve the product goal is important. There can be thousands of features and feature attributes resulting in myriads of configurations and finding the best configuration efficiently is a hard task. This paper proposes a systematic process for feature-based product configuration. To support development of a product that satisfys all product goals(business goals and quality goals), a model showing how feature and feature attribute combinations are related to product goals is included and a method for deriving an optimal product configuration using the model is proposed.

• Journal of KIISE:Software and Applications
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• v.34 no.3
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• pp.196-211
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• 2007

In the Product Line Engineering (PLE), current studies about an analysis of the feature have uncertain and ad-hoc criteria of analysis based on developer’s intuition or domain expert’s heuristic approach and difficulty to extract explicit features from a product in a product line because the stakeholders lack comprehensive understanding of the features in feature modeling. Therefore, this paper proposes a model of the analyzing commonality and variability of the feature based on the Ontology. The proposed model in this paper suggests two approaches in order to solve the problems mentioned above: First, the model explicitly expresses the feature by making an individual feature attribute list based on the meta feature modeling to understand common feature. Second, the model projects an analysis model of commonality and variability using the semantic similarity between features based on the Ontology to the stakeholders. The main contribution of this paper is to improve the reusability of distinguished features on developing products of same line henceforth.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.3
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• pp.105-110
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• 2014

Feature-oriented software product line engineering is to develop various products by developing product line core assets in terms of features and composing those features. However, the developed product may not behave correctly if the feature interaction problem has not be properly taken into account during the feature composition. This paper proposes techniques for identifying and modularizing undesirable feature interactions effectively. The scientific calculator product line is used for evaluating the applicability of the proposed method.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10b
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• pp.44-49
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• 2007

새로운 패러다임인 유비쿼터스에 대한 개념이나 적용 기술들에 대해서는 많은 연구가 진행되고 있으나, 이를 고려한 도메인 분석 기법에 대한 연구는 많지 않다. 또한, 범용적으로 사용되고 있는 휘처 기반의 도메인 분석 기법은 공간 재설계나 상황 인지 등의 유비쿼터스 컴퓨팅의 대표적인 특징을 수용하는 데에는 한계를 가지고 있다. 본 논문에서는 #공간 재설계#나 #상황 인지#에 초점을 두고 휘처 개발 방법을 통해 유비쿼터스 컴퓨팅 서비스의 도메인 분석 방법을 제시한다. 유비쿼터스 환경을 위한 정형화된 유비쿼터스 휘처 메타모델을 제시하고, 유비쿼터스 컴퓨팅 서비스를 휘처로 표현함으로써 기존의 휘처 모델링 방법에 의한 유비쿼터스 컴퓨팅 서비스의 모델링 접근을 가능하게 한다. 이로써 유비쿼터스 서비스 도메인 모델의 효과적인 분석을 가능하게 하고 정형화된 휘처 모델을 통한 기존 휘처 모델의 제품 계열 개발에 따른 재사용성을 증진시킬 수 있다.

• Journal of the Korea Society of Computer and Information
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• v.18 no.1
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• pp.123-136
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• 2013

The Feature model can not be guaranteed the syntactic accuracy of its model and be difficult the validation using automatic tool for its syntax, because this model is expressed by a graphical and informal structure in itself. Therefore, there is a need to formalize and check for the feature model, to precisely define syntax for construct of the model. This paper presents a Z formal specification and a model checking mechanism of the feature model to guarantee the correctness of the model. It first defines the translation rules between feature model and Z, and then converts the syntax of the feature model into the Z schema specification by applying these rules. Finally, the Z schema specification is checked syntax, type, and domain errors using the Z/Eves validation tool to assure the correctness of its specification, With the use of the proposed method, we may express more precisely the construct of the feature model. Moreover the domain analyst are able to usefully verify the errors of the generated feature model.

• The Journal of Society for e-Business Studies
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• v.12 no.4
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• pp.1-15
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• 2007

Traceability links are logical links between individual requirements and other system elements such as architecture descriptions, source code, and test cases. These are useful for requirements change impact analysis, requirements conflict analysis, and requirements consistency checking. However, establishing and maintaining traceability links places a big burden since complex systems have especially yield an enormous number of various artifacts. We propose a feature-oriented requirements tracing method to manage requirements with cost benefit analysis, including value consideration and intermediate catalysis using features. Our approach offers two contributions to the study of requirements tracing: (1)We introduce feature modeling as intermediate catalysis to generate traceability links between user requirements and implementation artifacts. (2)We provide value consideration with cost and efforts to identify traceability links based on prioritized requirements, thus assigning a granularity level to each feature. In this paper, we especially present the results of a case study which is carried out in Apartment Ubiquitous Platform to integrate and connect home services in an apartment complex in details.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.2
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• pp.115-120
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• 2014

Many product line engineering methods use the feature model to structure commonality and variability among products in terms of features and to derive a product feature configuration, which is the set of features required for the development of a product. Features to be selected during product derivation are mainly determined based on the quality attributes required for a product. Most methods published so far derived an optimal product feature configuration through linear co-relationship between features and quality attributes. However, the co-relationship between features and quality attributes can be formulated as a non-linear function because of feature interactions. This paper proposes a method that derives an optimal product feature configuration considering feature interactions. Four product line cases are used to validate the proposed methods.

• Journal of KIISE:Software and Applications
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• v.33 no.7
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• pp.589-604
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• 2006

Software product lines (SPL) are recently an emerging software reuse paradigm, which helps organizations develop their products from reusable core assets rather than from scratch. For developing these assets, understanding commonality and variability (C&V) is essential. A feature-oriented approach has been used extensively for C&V analysis in the SPL. However, this contains no proposal to systematically identify features and provide the rationale for the features. Further, the approach does not directly show how the results of C&V analysis will satisfy an organization's high-level business goals and provide the rationale for the C&V. Therefore, this paper presents a domain analysis method for the SPL based on goals, scenarios, and features in order to overcome some of the deficiencies and limitations of the feature-oriented approach. In particular, the paper proposes a domain requirements model (DRM) and a domain requirements modeling method based on the DRM. This method has been applied to the home integration system (HIS) domain to demonstrate its feasibility with a supporting tool, namely IDEAS. Our approach makes it possible to systematically identify the features and provide the rationale for both the features and the C&V.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06b
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• pp.187-189
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• 2012

오늘날의 소프트웨어 개발회사는 엄청난 시장 경쟁에 직면하고 있다. 세계 시장의 요구사항은 다양해 지고, 구현해야하는 휘처의 수는 증가하는 반면에 제품의 생명주기는 점점 짧아지고 있기 때문이다. 많은 소프트웨어 개발 회사는 빨리 변하는 개발 환경에 대응하기 위한 해결책으로 제품라인 공학을 적용하고 있다. 본 논문에서는 휘처 모델링에서 자산과 제품개발까지 휘처-중심 제품라인 소프트웨어 개발을 지원하기 위한 이클립스 플랫폼 기반의 새로운 워크벤치를 소개한다. 워크벤치의 특징과 개념적 아키텍처를 소개하고 주요 구성요소에 대한 간략한 설명과 함께 기능 지원을 위해 구성된 도구들에 대해서 소개한다.