Fuzzy Petri Net for Web Service Composition (FPN4WSC) aims to compose the individual web services into more complex one. It is a workflow model which is hybridization between Petri net, SHOP2, and fuzzy logic. Petri net allows user to specify his request as a workflow. SHOP2 is used as an Artificial Intelligence (AI) planning system to get a plan for the user request. However, SHOP2 fails to ca...

As XML becomes a standard for communications between distributed heterogeneous machines, many schools plan to implement Web Services systems using the XML e-transcript (electronic transcript) standard. We propose a framework that supports both XML e-transcript Web Services and existing EDI e-transcript systems. The framework uses the workflow engine to exploit the benefits of workflow managemen...

Scientific workflow systems frequently are used to execute a variety of long-running computational pipelines prone to premature termination due to network failures, server outages, and other faults. Researchers have presented approaches for providing fault tolerance for portions of specific workflows, but no solution handles faults that terminate the workflow engine itself when executing a mix ...

Workflow management systems support an efficient, largely automated execution of business processes. If a workflow management system is used to implement a computer supported business process from scratch, all the functionality of the workflow management system can be fully exploited. In particular, the control flow will be completely specified in the workflow management system’s specification ...

Context-aware computing is widely researched in recent years, but we lack for a powerful context-aware middleware which supports a uniform programming model. So developing context-aware applications is still complex and time-consuming. We introduce a workflow embedded middleware called FollowMe. It supports pluggable context-aware applications. FollowMe includes a workflow engine and sustains a...

This paper presents the work of building a Grid workflow system on distributed virtual machines. A Grid Virtualization Engine (GVE) is implemented to manage virtual machines as computing resources for Grid applications. The Virtual Data System (VDS) functions as a Grid workflow engine. This paper designs and implements the Virtual Data System on distributed virtual machines, which are enabled b...

[email protected] Abstract. In this paper, we provide a novel semantic workflow system, based on semantic functional service descriptions and a rule file. The workflow engine follows a three-step process. First, it determines for all the resources in its knowledge base the functionality they need to progress in the workflow. This uses a phase-functionality rule file which binds phases...

Distributed workflow technology has been widely used in modern education and e-business systems. Distributed web applications have shown cross-domain and cooperative characteristics to meet the need of current distributed workflow applications. In this paper, the author proposes a dynamic and adaptive scheduling algorithm PCSA (Pre-Calculated Scheduling Algorithm) for a distributed student regi...

Despite advances in the field of workflow flexibility, there is still insufficient support for dealing with unforeseen exceptions. In particular, it is challenging to find a solution which preserves the intent of the process as much as possible when such exceptions are encountered. This challenge can be alleviated by making the connection between a process and its objectives more explicit. This...

To accommodate the rapidly evolving business environments, there is a need for workflow management systems that can activate intra organizational business processes, in an efficient way. In this paper an Agent-Based Workflow Management System (AB-WfMS) is presented with the aim of supporting this issue through the adoption of agent technology. The proposed enterprise architecture has set apart ...