• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권3호
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• pp.1702-1721
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• 2019

A workflow process (or business process) management system helps to define, execute, monitor and manage workflow models deployed on a workflow-supported enterprise, and the system is compartmentalized into a modeling subsystem and an enacting subsystem, in general. The modeling subsystem's functionality is to discover and analyze workflow models via a theoretical modeling methodology like ICN, to graphically define them via a graphical representation notation like BPMN, and to systematically deploy those graphically defined models onto the enacting subsystem by transforming into their textual models represented by a standardized workflow process definition language like XPDL. Before deploying those defined workflow models, it is very important to inspect its syntactical correctness as well as its structural properness to minimize the loss of effectiveness and the depreciation of efficiency in managing the corresponding workflow models. In this paper, we are particularly interested in verifying very large-scale and massively parallel workflow models, and so we need a sophisticated analyzer to automatically analyze those specialized and complex styles of workflow models. One of the sophisticated analyzers devised in this paper is able to analyze not only the structural complexity but also the data-sequence complexity, especially. The structural complexity is based upon combinational usages of those control-structure constructs such as subprocesses, exclusive-OR, parallel-AND and iterative-LOOP primitives with preserving matched pairing and proper nesting properties, whereas the data-sequence complexity is based upon combinational usages of those relevant data repositories such as data definition sequences and data use sequences. Through the devised and implemented analyzer in this paper, we are able eventually to achieve the systematic verifications of the syntactical correctness as well as the effective validation of the structural properness on those complicate and large-scale styles of workflow models. As an experimental study, we apply the implemented analyzer to an exemplary large-scale and massively parallel workflow process model, the Large Bank Transaction Workflow Process Model, and show the structural complexity analysis results via a series of operational screens captured from the implemented analyzer.

• 인터넷정보학회논문지
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• 제19권3호
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• pp.25-33
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• 2018

본 논문에서는 클라우드 컴퓨팅 환경을 기반으로 하는 실시간 엔터프라이즈 워크플로우 관리 시스템을 구현하는데 있어서 반드시 수반되어야 하는 워크플로우 모델링 방법론으로서 정보제어넷 기반 클라우드 워크플로우 모델을 제안한다. 본 논문에서 제안하는 모델은 클라우드 서비스 배치모델을 기반으로 하는 클라우드 워크플로우 아키텍처, 즉 조직 수준 클라우드 배치모델, 커뮤니티 수준 클라우드 배치모델, 공적 수준 클라우드 배치모델, 혼합형 클라우드 배치모델 등으로 분류되는 클라우드 배치모델에 따른 클라우드 워크플로우 아키텍처를 지원하는 것을 목적으로 한다. 이 모델은 전통적으로 엔터프라이즈 워크플로우의 대표적인 정형적 모델링 기법인 정보제어넷 모델링 방법론을 클라우드 배치모델과 연계할 수 있도록 확장시킨 수학적 그래프 모델이다. 결론적으로, 본 논문에서는 제안된 정보제어넷 기반 클라우드 워크플로우 모델을 적용할 수 있는 클라우드 워크플로우 아키텍처와 그에 따른 클라우드 워크플로우 서비스를 설계함으로써 제안된 모델의 적용가능성을 검증한다.

• 인터넷정보학회논문지
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• 제13권2호
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• pp.109-118
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• 2012

본 논문에서는 워크플로우 협력네트워크 지식의 발견 알고리즘을 제안한다. 즉, 워크플로우 인텔리전스 (또는 비즈니스 프로세스 인텔리전스) 기술은 워크플로우 모델들과 그의 실행이력으로부터 일련의 지식을 발견, 분석, 모니터링 및 제어, 그리고 예측하는 세부기법들로 구성되는데, 본 논문에서는 워크플로우 모델을 구성하는 액티버티들과 그들의 수행자들간의 협력네트워크 지식을 "워크 플로우 협력네크워크 지식"라고 정의하고, 그의 발견기법인 정보제어넷(ICN, information control net)기반 워크플로우 협력네트워크 지식 발견 알고리즘을 제안한다. 특히, 제안한 알고리즘의 적용 사례를 통해 특정 워크플로우 모델로부터 해당 워크플로우 협력네트워크 지식을 성공적으로 생성할 수 있음을 증명함으로써 본 논문에서 제안한 알고리즘의 정확성 및 적합성을 검증한다.

• 한국IT서비스학회지
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• 제7권4호
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• pp.167-178
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• 2008

This paper addresses the issue of workflow on Grid and P2P, and proposes a layered workflow architecture and its related workflow models that are used for not only distributing workflows' information onto Grid or P2P resources but also scheduling the enactment of workflows. Especially, the most critical rationale of this paper is on the fact that the nature of Grid computing environment is fitted very well into building a platform for the maximally parallel and very large scale workflows that are frequently found in very large scale enterprises. The layered architecture proposed in this paper, which we call Enterprise Workflow Grid Architecture, is targeting on maximizing the usability of computing facilities in the enterprise as well as the scalability of its underlined workflow management system in coping with massively parallel and very large scale workflow applications.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권2호
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• pp.691-708
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• 2014

This paper formalizes a special type of social networking knowledge, which is called "workflow performer-role affiliation networking knowledge." A workflow model specifies execution sequences of the associated activities and their affiliated relationships with roles, performers, invoked-applications, and relevant data. In Particular, these affiliated relationships exhibit a stream of organizational work-sharing knowledge and utilize business process intelligence to explore resources allotting and planning knowledge concealed in the corresponding workflow model. In this paper, we particularly focus on the performer-role affiliation relationships and their implications as organizational and business process intelligence in workflow-driven organizations. We elaborate a series of theoretical formalisms and practical implementation for modeling, discovering, and visualizing workflow performer-role affiliation networking knowledge, and practical details as workflow performer-role affiliation knowledge representation, discovery, and visualization techniques. These theoretical concepts and practical algorithms are based upon information control net methodology for formally describing workflow models, and the affiliated knowledge eventually represents the various degrees of involvements and participations between a group of performers and a group of roles in a corresponding workflow model. Finally, we summarily describe the implications of the proposed affiliation networking knowledge as business process intelligence, and how worthwhile it is in discovering and visualizing the knowledge in workflow-driven organizations and enterprises that produce massively parallel interactions and large-scaled operational data collections through deploying and enacting massively parallel and large-scale workflow models.

• 인터넷정보학회논문지
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• 제13권2호
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• pp.73-86
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• 2012

본 논문에서는 워크플로우 소셜네트워크 인텔리전스의 발견 알고리즘을 제안한다. 즉, 워크플로우 인텔리전스 (또는 비즈니스 프로세스 인텔리전스) 기술은 워크플로우 모델들과 그의 실행이력으로부터 일련의 인텔리전스를 발견, 분석, 모니터링 및 제어, 그리고 예측하는 세부기법들로 구성되는데, 본 논문에서는 워크플로우 모델과 그의 실행을 기반으로 형성되는 수행자들간의 협업 인텔리전스를 "워크플로우 소셜네크워크 인텔리전스"라고 정의하고, 그의 발견기법인 정보제어넷(ICN, Information Control Net)기반 워크플로우 소셜네트워크 인텔리전스 발견 알고리즘을 제안한다. 특히, 제안한 알고리즘의 적용 사례를 통해 특정 워크플로우 모델로부터 해당 워크플로우 소셜네트워크 인텔리전스를 성공적으로 생성할 수 있음을 증명하므로서 본 논문에서 제안한 알고리즘의 정확성 및 적합성을 검증한다.

• 한국전자거래학회:학술대회논문집
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• 한국전자거래학회 2005년도 e-Biz World Conference 2005
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• pp.195-200
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• 2005

As the workflow systems are becoming complex and obscure, there are discrepancies between actual workflow process and designed process. Therefore, we have developed techniques for discovering workflow models. The starting point for such techniques is a so-called 'workflow log' containing information about the workflow process as it is actually being executed. This paper presents an algorithm of workflow process mining based on heuristic approach from the workflow log, which can be happen to business process system.

• 산업공학
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• 제10권3호
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• pp.63-73
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• 1997

This paper presents requirements for workflow management systems supporting CITIS. We propose an architecture of global workflow management system which aims at supporting external workflow among different organizations rather than internal one. The architecture consists of five key elements, that is process definition language, process graphic design tool, control engine, status monitoring tool, and interface models. For each of these elements, implementation requirements are presented and its major functions are described. A key concept to the CITIS standard is the integration of disparate systems in distributed environment. This leads us to place a special emphasis on the interface models that can enhance the interoperability between externally participating workflow systems. Two interface models for the global workflow management system are explained. CORBA, the most widely accepted standard for distributed object management, can be adopted to facilitate the integration. World Wide Web can be used for the underlying platform on which information is exchanged and the status of processes instances is monitored. The workflow management system can provide a ready and easy access to and management of the data for CALS environments.

• 인터넷정보학회논문지
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• 제10권3호
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• pp.1-8
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• 2009

워크플로우 관리 시스템은 크게 다섯 가지 측면, 즉 자원(조직)측면, 제어흐름측면, 데이터흐름측면, 이력관리측면, 운용(응용프로그램)측면의 핵심규격을 정의하고 분석하는 모델링모듈과 그 규격에 따른 워크케이스를 실행시키는 엔진모듈로 구성된다. 또한, 워크플로우 관리 시스템의 품격을 결정짓는 핵심기준은 "제정된 규격에 따른 워크플로우 실행의 정확성을 얼마나 보장할 수 있는가?"이다. 특히, 워크플로우의 제어흐름측면규격과 데이터흐름측면규격의 상호간섭으로 발생할 수 있는 "워크플로우 결정성 문제"는 워크플로우 실행의 정확성 보장 여부를 결정짓는 핵심문제이며, 이에 대한 해결방안은 모델링모듈 차원의 워크플로우 분석기법과 엔진모듈 차원의 워크플로우 실행 검증기법으로 나뉘어 구현될 수 있다. 본 논문에서는 워크플로우 결정성 문제에 대한 해결방안으로 엔진모듈 차원의 워크플로우 실행 검증기법, 즉 워크플로우 엔진모듈에 의해 실행되는 액티비티들간의 상호간섭 조건(제어흐름과 데이터흐름)을 검출할 수 있는 메커니즘을 제안한다. 또한, 제안된 메커니즘을 저자 소속의 연구실에서 개발한 워크플로우 관리 시스템에 실제 적용한 결과를 제시함으로서 워크플로우 결정성 문제에 대한 실행 가능한 해결방안임을 증명한다.

• 인터넷정보학회논문지
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• 제17권5호
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• pp.43-49
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• 2016

This paper presents a workflow validation method for data-intensive graphical workflow models using real-time workflow tracing mode on data-intensive workflow designer. In order to model and validate workflows, we try to divide as modes have editable mode and tracing mode on data-intensive workflow designer. We could design data-intensive workflow using drag and drop in editable-mode, otherwise we could not design but view and trace workflow model in tracing mode. We would like to focus on tracing-mode for workflow validation, and describe how to use workflow tracing on data-intensive workflow model designer. Especially, it is support data centered operation about control logics and exchange variables on workflow runtime for workflow tracing.