Figure 8

The biowep entity – relationships – attributes schema. In this schema, entities and relationships are coloured on the basis of their prevalent entity: yellow for data on users, magenta for information on workflows and cyan for the results of executions. It is important to note links between users' domains of interests and workflows' domains of application, as well as between users' roles and workflows' run contexts. Also, it should be noticed the difference between workflows and their versions and how the annotations and the executions data refer to versions.