- The presentation introduces WS-VLAM, a workflow management system that aims to enable end-users to define, execute, and monitor e-science applications in a location-independent way. - WS-VLAM adopts a service-oriented approach, implementing the workflow engine and repository as WSRF services using Globus Toolkit 4. This allows for interoperability with other workflow systems. - Current work involves testing on rapid prototyping environments and planned integration with Taverna and Kepler to allow executing predefined VLAM workflows from within those systems.