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Each workflow is described in an XML file that outlines the steps in the process including which resource to run on, executables that will be launched, input files to use, etc. Initially, we will simply store the workflow information in a single WorkflowStepBean that has a reference to the file containing the xml and the DatasetBeans. Ogrescript xml files can be complex, but if we can logically separate out the steps or parts into individual bean beans that can be used to generate the full workflow xml file required by the HPC machines, then we can include workflow steps as separate beans and provide a UI for adding steps dynamically.

This bean will wrap the workflow and all of its parts.

private String title;
private String description;
private Date date;
private List<WorkflowStepBean> workflowSteps;  // only one step initially which will be the workflow file that PTPFlow can launch right now
private PersonBean creator;
private Collection<PersonBean> contributors;

This bean will represent a step in the workflow.

private String title;
private PersonBean creator;
private Date date;
private List<DatasetBean> inputDatasets;  // all data inputs associated with this step
private DatasetBean workflow;  // initially our steps will only include a single step, the entire workflow

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