Dynamic Workflow Composition and Execution
نویسندگان
چکیده
In this paper, we present a new approach for programmable workflow composition. The workflow is represented as sequence of tasks with explicitly defined input/output data. Parallelism between tasks is implicitly defined by the data dependence. Users can create a more complicated workflow by scripts, including nested and parameterized workflows. The workflow will be executed in distributed
منابع مشابه
Architectural Plan for Constructing Fault Tolerable Workflow Engines Based on Grid Service
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...
متن کاملArchitectural Plan for Constructing Fault Tolerable Workflow Engines Based on Grid Service
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...
متن کاملA Clustering Approach to Scientific Workflow Scheduling on the Cloud with Deadline and Cost Constraints
One of the main features of High Throughput Computing systems is the availability of high power processing resources. Cloud Computing systems can offer these features through concepts like Pay-Per-Use and Quality of Service (QoS) over the Internet. Many applications in Cloud computing are represented by workflows. Quality of Service is one of the most important challenges in the context of sche...
متن کاملPattern Based Composition of Web Services for Symbolic Computations
The suitability of the BPEL workflow description language for the dynamic composition of Web services representing computational algebra systems is investigated. The prototype implementation of the system for dynamic generation of BPEL workflows and two examples demonstrating the benefits of our approach are described. One of important aspects of the design is that the composition is achieved u...
متن کاملAn Approach to Support Monitoring and Recovery of BPEL Processes at Runtime
The dynamic composition of Web service can be modeled as a service oriented workflow. However during the execution of this workflow, potential failure can occur on-the-fly which make down the composed Web service. To avoid downtime of the overall process in execution, some recovery methods are required. The objective of this paper is to present a state of the art of the most known failures and ...
متن کامل