DynaFlow a dynamic inter-organisational workflow management system

DynaFlow a dynamic inter-organisational workflow management system

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Int. J. Business Process Integration and Management, Vol. 1, No. 2, 2006 101 Copyright © 2006 Inderscience Enterprises Ltd. DynaFlow: a dynamic inter-organisational workflow management system Jie Meng,* Stanley Y.W. Su, Herman Lam, Abdelsalam Helal, Jingqi Xian, Xiaoli Liu and Seokwon Yang Database Systems R&D Center, CSE 470, Department of Computer and Information Science and Engineering, University of Florida, Gainesville, FL 32611-6125, USA E-mail: jmeng@google.com E-mail: su@cise.ufl.edu E-mail: hlam@ufl.edu E-mail: helal@cise.ufl.edu E-mail: mxian@adobe.com E-mail: xiaoliliu01@yahoo.com E-mail: seyang@cise.ufl.edu * Corresponding author Abstract: As the global marketplace becomes more and more competitive, business organisations often need to team up and operate as a virtual enterprise to utilise the best of their resources for achieving their common business goals. As the business environment of a virtual enterprise is highly dynamic, it is necessary to develop a workflow management technology that is capable of handling dynamic workflows across enterprise boundaries. This paper describes a Dynamic Workflow Model (DWM) and a dynamic workflow management system (DynaFlow) for modelling and controlling the execution of inter-organisational business processes. DWM enables the specification of dynamic properties associated with a business process model. It extends the underlying model of the WfMC’s WPDL by adding connectors, events, triggers and rules as its modelling constructs. It also encapsulates activity definitions and allows web service (or e-service) requests to be included as a part of the activity specification. Using DWM as the underlying model, DynaFlow makes use of an Event-Trigger-Rule (ETR) server to trigger rules during the enactment of a workflow process to enforce business rules and policies and/or to modify the process model at run-time. A constraint-based, dynamic service binding mechanism is used to dynamically bind web service requests to web services that satisfy the requirements of the requests. Keywords: Dynamic Workflow Model (DWM); dynamic workflow management system; web services; e-services; constraint specification; business event; business rule; dynamic service binding. Reference to this paper should be made as follows: Meng, J., Su, S.Y.W., Lam, H., Helal, A., Xian, J., Liu, X. and Yang, S. (2006) ‘DynaFlow: a dynamic inter-organisational workflow management system’, Int. J. Business Process Integration and Management , Vol. 1, No. 2, pp.101–115. Biographical notes: Jie Meng received her BA and MS in Computer Science from the Tsinghua University, Beijing, China in 1991 and 1995, respectively. She received her PhD in Computer Engineering at the University of Florida in May 2002. Her research interests include workflow systems, database systems, web services technology and electronic commerce/business systems. Currently, she is working for Google, Inc.
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DynaFlow a dynamic inter-organisational workflow management system

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