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Figure 7: The Galaxy workflow system supported with cloud computing functionalities and streaming option. The upper left screen shot is the elastream page, from which the user can access the Galaxy workflow system installed on the elastream infrastructure. The upper right screen shot is the Galaxy page, where the user selects the elastream workflow. The lower left is the elastream workflow, and the lower right is the input/execution page, where the user specifies the paths of the input files including command line, credentials, and input data.