• Journal of the Korea Society for Simulation
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• v.16 no.4
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• pp.77-86
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• 2007

Web services are considered as the critical component in the business plans of corporations as they offers the potential for creating highly dynamic and versatile distributed applications that span across business boundaries. Web Service Orchestration studies composition of already-existing web services to create new value-added services. The composite web services could be executed in a centralized or peer-to-peer(P2P) orchestration model. Compared with centralized-orchestration model, the P2P-based orchestration model provides better scalability, reliability, and performance for the overall services. However, recent P2P-orchestration solutions have limitation in supporting complex workflow patterns. Therefore, they could not effectively handle sophisticated business workflow, which contains complex workflow patterns. In this paper, we propose the WORKGLOW system, which can deal with complex workflow patterns while it is able to perform composite services in P2P orchestration manner. Comparing with centralized orchestration systems, the WORKGLOW brings up more business logic advantages, better performance, and higher flexibility with only a little overhead.

• 한국경영정보학회:학술대회논문집
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• 2007.11a
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• pp.322-327
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• 2007

최근 기업 환경이 복잡해지고 분산화 되어감에 따라 각 기업간의 그리고 부서 및 지점간의 프로세스 상호운용 및 협력이 중요한 이슈로 떠오르고 있다. 이러한 시점에서 기업간 비즈니스 프로세스와 메시지 등을 교류할 수 있는 상호운용성이 기업들에게 필수적인 요소로 고려되고 있다. 지금까지 많은 기술자와 연구자들에 의해 기업간 워크플로우 상호운용성을 해결할 수 있는 기술적인 노력이 꾸준히 이루어져 왔다. 기술적 문제의 해결도 중요하지만 이보다 우선적으로 해결되어야 될 것은 비즈니스 프로세스 상호운용성에 대한 개념적 모델링과 정확한 분석이다. 본 논문에서는 기존의 워크플로우 패턴들에 대한 연구들을 정리해 보여 줄 뿐만 아니라, 여러 기업간 비즈니스 프로세스가 상호운용될 시 충돌을 유발시킬 수 있는 패턴들을 제시할 것이다. 이러한 패턴들에 관한 연구는 여러 기업들이 복잡한 비즈니스 프로세스를 문제없이 효율적으로 상호운용할 수 있도록 도움을 주는 기본적인 정보가 될 것이다.

• The Journal of Society for e-Business Studies
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• v.14 no.1
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• pp.35-56
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• 2009

Many process modeling techniques, such as Petri-net, UML Activity Diagram, and EPC, are used to design process models. In this paper, we analyze ubiquitous process design based on workflow patterns. In particular, we focus on process design using active rules that have the form of Event-Condition-Action, and deal with the WS-ECA language, which was devised for ubiquitous web services coordination. We first check whether workflow patterns can be designed with ECA rules, and we then provide WS-ECA representations for ECA rules of the patterns. The contribution of this paper is that ECA rule-based process models were presented based on workflow patterns and they can be a guideline for ubiquitous process modeling.

• Journal of KIISE:Databases
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• v.32 no.6
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• pp.603-615
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• 2005

As recent business environments are changed and become complex, a more efficient and effective business process management are needed. This paper proposes a new approach to the automatic execution of business processes using Event-Condition-Action (ECA) rules that can be automatically triggered by an active database. First of all, we propose the concept of blocks that can classify process flows into several patterns. A block is a minimal unit that can specify the behaviors represented in a process model. An algorithm is developed to detect blocks from a process definition network and transform it into a hierarchical tree model. The behaviors in each block type are modeled using ACTA formalism. This provides a theoretical basis from which ECA rules are identified. The proposed ECA rule-based approach shows that it is possible to execute the workflow using the active capability of database without users' intervention.

• Journal of Intelligence and Information Systems
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• v.15 no.1
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• pp.103-122
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• 2009

The recent development of information technology has been envisioned as the next technological wave and is expected to play an important role in diminishing boundaries between business organizations. Enterprises have recently resulted in a surge in workflow management, making business processes sharable among different business organizations. To make heterogeneous workflows operational, it is crucial that workflow management systems provide efficient tools for an environment supporting interoperability of business processes among different business organizations. As the potential of workflow management is becoming widely recognized, the demand for an integrated framework that facilitates interoperability among heterogeneous workflows is concomitantly growing. Despite the large body of work in the area of workflow management, few efforts are directed towards identifying conflict patterns for heterogeneous workflow interoperability of inter-organizational business processes. In this paper, we summarize state of the art research trends in workflow management research area and identify conflict patterns for heterogeneous workflows. We believe that this is one of the first attempts to conceptualize conflict patterns that exist on inter-organizational business processes. This paper opens up a novel avenue for workflow management research by supplementing the existing conceptual frameworks for workflow management.