• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.352-354
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• 2002

업무규칙은 선언적인 방법으로 업무정책을 표현하고 업무조항을 정의한다. 또한 업무프로세스를 정의하고 프로세스가 수행되는 과정에 제약을 가한다. 본 논문에서는 능동문서 처리 프레임워크를 구현하였다 즉, 사무문서에 함축되어 있는 업무규칙을 어플리케이션 로직과 분리하여 생각하였고, 업무규칙은 Prolog로 명시적으로 표현하였다. 이 Prolog 규칙은 논리프로그램 추론엔진에서 수행가능하고, 이종의 규칙기반 어플리케이션에서 사용할 수 있도록 XML 문서로 변환하였다. 이렇게 문서의 데이터와 규칙을 저장한 XML 문서는 규칙기반의 시스템과 워크플로우 관리시스템(WFMS) 환경에서 처리된다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10c
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• pp.640-642
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• 2003

모바일 디바이스들의 강력한 이동성 및 즉시성은 전통적 워크플로우 관리 시스템과의 통합을 통하여 더욱 큰 생산성 향상을 가져 올 수 있다. 본 연구에서는 PDA를 실제 런타임 클라이언트로 가정하여, 디스커넥티드 오퍼레이션과 몇가지 모듈의 추가 및 프로세스 정의어의 변경을 통하여 모바일 디바이스의 통합을 시도하였다. 이를 위해서 기존의 워크플로우 시스템 서버와 클라이언트에 모바일 환경을 지원하기 위해 필요한 추가적인 모듈이 새롭게 고안되고 설계되었다.

• Proceedings of the Korea Association of Information Systems Conference
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• 2003.11a
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• pp.55-63
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• 2003

Workflow Management System (WFMS) is a software system to support an efficient execution, control and management of complex business processes. Since traditional commercial systems mainly focus on automating processes, they don't have methods for enhancing the task performer's efficiency. In this paper, we propose a new method of executing business processes more efficiently in that a whole process is scheduled considering the degree of the participants' workload. The method allows managing the largest constraints among constituent resources of the process. We utilize DBR scheduling techniques to develop the method. We first consider the differences between workflow process models and DBR application models, and then develop the modified drum, buffer and rope. This leads us to develop WF-DBR (WorkFlow-DBR) that can control the proper size of the task performers' work list and arrival rate of process instances. Use of WF-DBR improves the efficiency of the whole process as well as the participants' working condition. We then carry out a set of simulation experiments and compare the effectiveness of our approach with that of scheduling techniques used in existing systems.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2001.10a
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• pp.3-6
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• 2001

워크플로우관리시스템 (Workflow Management System, WFMS)은 기업의 비즈니스 프로세스를 컴퓨터화하고 이를 자동으로 실행해주는 소프트웨어이다. BPR 이후 계속된 기업의 프로세스에 대한 관심은 WFMS의 중요성을 부각시켜주었으며, 최근에는 ERP, CRM, EAI 등과 같은 기업 정보시스템의 핵심모듈로서 기존 시스템 통합의 필요성을 널리 인정받고 있다. 본 논문에서는 먼저 WFMS의 소개를 통해 WFMS의 이해를 돕고, 이를 토대로 그 필요성과 중요성을 설명하고자 한다. 또한, WFMS가 가지는 장점을 현재 국내외 워크플로우 시스템의 현황을 통해 살펴보고, 저자들의 다년간 연구, 개발 경험을 토대로 한 WFMS의 연구분야를 소개한다. 이를 통해, 앞으로 WFMS의 향후 전망과 정보시스템의 미래를 조망하는 것이 본 논문의 목표이다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2000.11a
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• pp.579-582
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• 2000

In this study, we investigate several problems of previous workflow system, and suggest an enhanced process management system that involves a substantial portion of workflow system. To overcome the differences in systems, we selected a web as platform to develop a process management system, and we investigate merit and capability of web-based process management system. We improved WFMS's ability to define various process through many behavior rules and multiple layered process structure. We suggest X-WPM system for the process management system with XML technology.

• The KIPS Transactions:PartD
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• v.10D no.6
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• pp.1011-1016
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• 2003

To cope with rapidly changing enterprise environment, many business entities introduce EAI, which integrates applications by installing middleware. But existing EAI has a serious problem that is to import imddleware-dependent coding method to integrate systems, using different middlewares. In this paper, we suggest middleware independent 'Workflow Management System' which efficiently integrates applications of various middleware systems with 'Duplicate EAI Adapter', 'state chart' and 'XML' technology.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.27 no.4
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• pp.69-76
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• 2004

A framework for knowledge management system has been explored which enables the semantic search of knowledge on the web. Knowledge representation by RDF and RDF schema enables machine cognition of knowledge documents. Dublin core was adopted for structured metadata representation. Thereby, it enables the CBR and rule based reasoning for intelligent knowledge retrieval. Grafting of the WFMS technique unto the KMS facilitates the effective utilization of process knowledge and creation of new knowledge.

• Proceedings of the Safety Management and Science Conference
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• 2006.11a
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• pp.415-426
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• 2006

Many technical and nontechnical issues hinder enterprise wide workflow management. The most significant technical issue is the inability to deal with the heterogeneity among users, workflow types, and WFMSs. Not all users demand the same workflow functionality, so user interfaces of different levels of sophistication are required. Because workflow types cannot always be fully predefined, they often need to be adjusted or extended during execution. Unlike relational database management systems, however, each WFMS often has differing workflow metamodels. This leads to incompatibility between WFMSs, making integration into an environment comprising many heterogeneous WFMSs a troublesome and sometimes impossible task. Current Workflow system consists mainly of Database system. It contains some problems like that the integration relationship among system processes cant be expressed properly. This research has been focused on two phases that should be considered in the Workflow system. First of all, the first phase is the analysis phase; one of its role is to figure out independent execution task unit(Workflow component). The second phase is design phase that provides with the framework to execute these task units actively. The Workflow component extraction method in the analysis phase uses a analysis method called C-C Net and, in the design phase, the architecture that makes the these Workflow component executed actively is provided. Through this research, each process is divided into a task unit and more effective Workflow system could be formed by executing these units actively. Current system layer calls task units, on the other hand, the Workflow system this research implemented provides with the architecture that places a layer between them that controls task units actively.