ARC plugin for Taverna used for medical imaging Video by the KnowARC project (thanks Hajo!) Taverna is a workflow management system well known in bioinformatics. To show the ease of transitioning from local to grid, we execute MUSTANG first on the command line, then on the grid using Taverna. We then present two examples from the field of medical imaging, where the first one has to deal with huge temporary datasets. It thus greatly benefits from ARCs storage management and grid URL handling capabilities. The last example shows how one can achieve rapid testing iterations by separating the program binary from its use case description and the workflow. In the end, myExperiment is presented, which is a free web community for sharing Taverna workflows. By preparing a use case and an example workflow one can make his own program easily usable by everyone since the ARC middleware equalizes different grid configurations.