BIS 2000: 4th International Conference on Business by Shazia W. Sadiq, Maria E. Orlowska (auth.), Witold

By Shazia W. Sadiq, Maria E. Orlowska (auth.), Witold Abramowicz, Maria E. Orlowska (eds.)

This quantity comprises papers awarded in the course of the technology hint on the 4th foreign convention of industrial info platforms, BIS 2000, held in Poznan, Poland, 12-13 April 2000, which mentioned the improvement, implementation, purposes and development of computers for company processes.
The papers care for functional, stories and established prototype implementations, and canopy parts similar to integration of knowledge platforms, digital transactions and banking, digital corporations, community applied sciences, enterprise info structures modelling and analysis.

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Extra resources for BIS 2000: 4th International Conference on Business Information Systems, Poznań, Poland, 12–13 April 2000

Sample text

Workflow Management - Modeling Concepts, Architectures and Implementation. International Thompson Computer Press, 1996 II. , Dellarocas Ch. A Knowledge-based Approach to Handling Exceptions in Workflow Systems. Workshop on Adpative Workflow Systems. Conference on Computer Supported Cooperative Work (CSCW), Seattle, USA, November 1998 12. , Dadam P. ADEPTflex - Supporting Dynamic Changes of Workflow without loosing control. Journal of Intelligent Information Systems (JIIS), Special Issue on Workflow and Process Management, 1997 13.

Section 4 discusses the migrating workflow model in details. 3. Migration ofWorkflows: An Example The Migrating Workflow Model [7, 5] emerged from the intelligent software agents and distributed transactions fields. Many concepts and solutions presented in the context of mobile agents [20,10] are applicable or easily adaptable to migrating workflows. This model is also influenced by the concept of Information Carriers presented in [3]. To illustrate the major features of the model, including the migration of the workflow, the dynamic nature of the workflow instance, and the capability for disconnected (mobile) operations, we present in this section an example of a migrating workflow.

Migrating workflows implement this concurrency control method by means of a global timestamp server that implements the concept of global tickets introduced in [12]. Before executing the first request in an execution atomic unit, the migrating workflow obtains a timestamp (valid for all requests in the unit) from a special site, a timestamp server. The timestamp is a logical concept. Timestamps do not have to be real time-dependent values, as long as they are unique and totally ordered. While executing, the workflow instance presents this timestamp to the sites controlling the data.

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