|
|
|
| Design on QoS-based workflow negotiation model in grid environment |
| 1. College of Computer Science, Beijing University of Technology, Beijing 100124, China; 2. Data Center, China Central Radio and TV University, Beijing 100031, China |
|
|
|
|
Abstract In order to meet the needs of the collaboration work between different virtual organizations in the grid computing, the workflow as an important means to implement cooperation of services was introduced. Furthermore, in order to provide the quality of service （QoS） for fulfilling customer expectations in workflow, a QoS-based negotiation model including four typical modules in the grid computing was proposed, which could evaluate the users＇ requirements and return the evaluation results through defining the message type and designing the state transfered diagram based on WSDL specification. Finally, through implementing the assessments of user requirements and returning the results of the assessment to the user, this model promises that the workflow can be closely around the user＇s requirements and improve the accuracy of choosing services to avoid service invalidation
|
|
|
|
|
|
|
|
|
2009, Vol. 30 
