in this paper the design and implementation of fault tolerable architecture for scientific workflow engines is presented. the engines are assumed to be implemented as composite web services. current architectures for workflow engines do not make any considerations for substituting faulty web services with correct ones at run time. the difficulty is to rollback the execution state of the workflo...

In this paper the design and implementation of fault tolerable architecture for scientific workflow engines is presented. The engines are assumed to be implemented as composite web services. Current architectures for workflow engines do not make any considerations for substituting faulty web services with correct ones at run time. The difficulty is to rollback the execution state of the workflo...

In this paper the design and implementation of fault tolerable architecture for scientific workflow engines is presented. The engines are assumed to be implemented as composite web services. Current architectures for workflow engines do not make any considerations for substituting faulty web services with correct ones at run time. The difficulty is to rollback the execution state of the workflo...

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Reusable development can promote the productivity of large workflow systems development. However it has not precluded developers from designing workflow system tailoring to users’ specific needs, though workflow management coalition standardized the five kinds of abstract interfaces of workflow enactment service in workflow reference model. Specific business process characteristics are still su...

Grid workflow, as a basic service in the grid environment, is a useful tool to help researchers make use of various gird resources to solve scientific problems. It is possible lots of users invoke grid workflow services in a very narrow time interval. Therefore, a centralized grid workflow engine is apt to be a bottleneck. In the paper, a novel grid workflow engine is proposed. It is based on J...

Reusable development can promote the productivity of large workflow systems development. However it has not precluded developers from designing workflow system tailoring to users’ specific needs, though workflow management coalition standardized the five kinds of abstract interfaces of workflow enactment service in workflow reference model. Specific business process characteristics are still su...

At present workflow management systems are widely used to manage business processes in an organization, while the workflow engine provides a runtime execution environment, manages the overall processing and execution of workflow instances. One of the major limitations of current workflow engine is the lack of flexibility to support adaptive environments. In this paper we propose an adaptive wor...

This paper describes an architectural model supporting the development of a particular type of application with the trading of intangible goods. To control the coordination of trading partners a coordination mechanism is presented based on an event-oriented workflow engine. This work intends to give some support to the idea that the workflow technology can be suitable for this type of applicati...