MOTEUR: a data-intensive service-based workflow manager

MOTEUR is a service-based workflow manager designed to eciently process data-intensive applications on grid infrastructures. It exploits several levels of parallelism and can group services to reduce the workflow execution time. In addition, MOTEUR uses a generic web service wrapper to ease the use of legacy or non-service aware codes. In this report, we present MOTEUR and the optimiza- tion strategies implemented. We show how it is defin- ing a precise data flows semantics to express complex data-intensive applications in a compact framework. MO- TEUR' Service-Oriented Architecture is detailed, demon- strating the flexibility of the approach adopted. Results are given on a real application to medical images process- ing using two dierent grid infrastructures.