Galaxy interface. The Galaxy web interface is divided in different views, listed at the top: “Analyze data”, “Workflow”, “Shared Data”, “Visualization”, “Admin”, “Help”, and “User”. The frontpage is the “Analyze data” view, shown in this figure, with three columns: available tools (left), current tool (center), and history of loaded data and executed tools (right). In this example the logged in user is working in a history named “Mikel mPuma testing”: different datasets have been loaded (Steps 1, 3, 5) and a tool has been executed (The execution of tool Create ace TOC from SAM, using the result of step 5 as input, has resulted in the dataset stored in step 9). The tool ClustalW is selected to be executed next, using the dataset of step 1 as input, and the result will appear in the history as step 10. (Some steps have been deleted from the history).