• Journal of KIISE:Computing Practices and Letters
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• v.12 no.6
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• pp.379-385
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• 2006

To improve reusability and adaptation of variable components, rule-based component development has been used. Rule engines usually need additional script languages for rule expression and have difficulty in expressing complex business rules. In this paper, we propose a compiler-based rule engine for rich rule expression and improving performance. This rule engine uses Java programming language to express conditions and action parts of rules and that it can easily express complex business rules. It creates and executes condition and action objects at run time. In view of Performance, the rule engine is better than a script based rule engine. According to our experiments, our compiler-based nile engine shows 2.5 times better performance that script-based JSR 94 rule engine.

• The KIPS Transactions:PartD
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• v.12D no.2 s.98
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• pp.275-282
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• 2005

In order to increase extendibility and reusability of components during component design, the variability discovered in a business application development needs to be defined to separate rules. That is because component adaptation techniques through redefinition of implementation classes and interface wrapping have limits to support the component reusability. Therefore, It's essential to design the component which takes into account the future reusability in the component development. In this paper, we extended the existing component architecture to incorporate rule components by separating variable properties from the components and defined the necessary syntax for the rule definition. In the case study, we built the business components for an insurance sales application and verified the component reusability through the rule redefining.

• Journal of KIISE:Computing Practices and Letters
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• v.12 no.2
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• pp.129-140
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• 2006

The existing CBD development methods deal with the analysis phase in a superficial manner. Applying such a superficial analysis to business applications with a number of subsystems makes analysis models be inconsistent with levels and styles, only depending on experiences of the analysts. This inconsistent analysis might cause more serious problems during the subsequent development phases, resulting in the failure of the projects. In this paper, we propose a rule-based analysis pattern that provides an analysis template for business applications. This pattern analyzes the concepts of business applications by using external events and internal rules that process the events. Employing this pattern, a huge business application can be developed by a couple of co-analysts who work together in a consistent and systematic manner. This paper also describes an efficient way to develop business components with the suggested analysis pattern using banking deposit case study through UML Components development process.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05a
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• pp.189-192
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• 2003

분산 시스템의 관리를 위해서 시스템 내의 각 컴포넌트에서 발생되는 많은 이벤트 중에 의미 있는 이벤트를 효과적으로 찾아내는 이벤트 파싱 엔진이 필요하다. 본 논문에서는 유연성 있는 이벤트 파싱 엔진을 제안한다. 특히 이벤트 파싱 엔진의 내부 구현을 위해서 기존의 룰 기반 접근방법을 변형한 새로운 접근방법을 제시한다. 본 엔진에서는 룰의 조건과 액션을 스크립트 객체화한 스크립트 객체 기반 접근방법과 룰에 해당하는 이벤트들을 찾아낼 때 보다 효과적이 검색을 지원하는 이벤트 토큰 기반 방식을 사용한다.

• The KIPS Transactions:PartD
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• v.11D no.3
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• pp.605-616
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• 2004

The purpose of CBSD(Component Based Software Development) if to develop software using a reuse component and components assembly. The reused components have to be adapter for satisfaction of requirement specification. This paper represents a component adaption method which reuse previously developed component or legacy system, using an adaptation component called by TA(Transaction Adaptor). The adaptation using TA transmits XML data that is translated into stream type, from a client to on host system. And we introduce RS(Rule Server) which gets some Information from XML data for application program development. Through the Interaction of TA and RS, we can improve effectiveness of component development and maintenance and we can reuse legacy system.

• Proceedings of the KIEE Conference
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• 2004.07d
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• pp.2592-2594
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• 2004

본 연구에서는 갈수록 늘어나는 이메일 문서의 관리를 효율적으로 하기 위한 방법으로 새로운 메일이 도착했을 때 해당 카테고리를 추천받아 사용자가 직접 최적의 분류를 할 수 있는 이메일 추천 에이전트 시스템을 제안한다. 이메일 문서들의 카테고리별 분류 및 해당 폴더 저장에서 핵심이 될 수 있는 정확한 분류를 위해 동적 임계치를 이용한 베이지안 학습 알고리즘을 적용하였으며, 또한 주요 모듈 부분을 확장성과 재 사용성을 위해 컴포넌트화 하였다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.11 no.4
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• pp.379-387
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• 2018

In order to make the IoT ecosystem more usable and friendly to general users, the interaction between the users and platforms/devices and its UX must be improved. In this study, a web-based rule engine system to help users intuitively interact with the various devices and services in IoE (Internet of Everything) platform is proposed. The proposed system consists of web interfaces and UI components for creating and managing rule-based scenarios using sensors, actuators, and external services in an intuitive way. Also, a rule management module for automatically translating the rules from the web interface into Nools rule engine compatible ones is proposed. Finally, we show the usability and feasibility of the proposed system by demonstration of rule-based use cases of IoT devices and external services.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.619-622
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• 2005

최근 금융권의 수익 기반이 되고 있는 수수료는 다양한 형태의 규칙을 내포하고 있으며, 복잡성이 증가하고 있어 유연하고 동적인 수수료 구조가 요구된다. 이러한 요구 사항을 충족시키기 위해서 업무 규칙(business rule)이 활용될 수 있다. 본 논문에서는 은행권의 수수료를 분석하여, 수수료 부과 기준을 업무 규칙으로 정의하고, 이를 파라미터 드리븐(parameter driven) 방식의 룰 데이터베이스(rule database)로 설계하였다. 이를 통하여 복합 수수료를 즉시 적용할 수 있는 유연한 설계로 어플리케이션 구조를 단순화 할 수 있는 업무 규칙 기반 수수료 처리 컴포넌트를 설계하였다.

• Journal of Internet Computing and Services
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• v.8 no.6
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• pp.55-73
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• 2007

Importance of coordination among heterogeneous devices is significantly increasing to meet the challenges presented by the evolvement of the ubiquitous computing environment. The web services technology is going up as a promising solution to support the inter-operability between such heterogeneous devices via well-defined protocol. Currently, ECA(Event-Condition-Action) rule based framework for coordinating devices is proposed, it is called as WS-ECA(Web Services-ECA) framework. This framework was basically based on the web services and proposed the ECA based rule language, And this also proposed the framework that could enable the device coordination based on proposed rule language. In this paper, we propose the protocol among the components of WS-ECA framework to support dynamic feature for ubiquitous environment, and we also propose WSDL extension to support service and event descriptions these are provided in components of this framework.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.403-405
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• 2004

본 연구는 미들웨어 기반의 OSGi(Open Service Gateway initiative) 서비스 플랫폼과 규칙 기반 생성 시스템 기술을 응용하여 유연하고 효율적인 홈 서버 아키텍처를 제안한다. 미들웨어 컴포넌트인 서비스를 엔진은 서비스로부터 요청된 호출을 정해진 규칙에 따라 평가 판단하여 홈 기기들을 제어하고 관리한다. 서비스 룰 엔진은 실행 규칙이 명세 되어 있는 프로파일을 참조하여 처리하고, 홈 기기 접근 권한과 현재 서로 상충되는 홈 기기가 작동 중인지 점검하며, 우선순위와 충돌 방지 조건 및 제약조건을 조회하여 홈 기기를 제어한다. 이때 방제, 보안에 관련된 홈 기기의 작동이 요구되는 경우 정해진 방재, 보안 규칙에 따라 가장 먼저 수행된다. 프로파일은 사용자가 서비스를 매니저를 통해 관리하거나 외부의 접근 허가된 사용자가 관리할 수 있으며, 여러 형태의 프로파일이 제공되어 사용자의 성향에 따라 프로파일을 선택하여 홈 서버에 적용할 수 있다