In this paper, we propose an agent-based middleware architecture for the workflows used in Grid portal. We combined workflow model, workflow management system, job distribution, parameter scheduling, and service inteface in the middleware architecture. The workflow model consists of three layers. The agent-based middleware architecture consists of five agents and three types of communication protocols. Users can design a lightweight, flexible and effective middleware, which can be used to construct a workflow-based Grid portal.
['Sangkeon Lee', 'Jaeyoung Choi', 'K. Cho']
Agent-Based middleware architecture for workflow in grid portals