CWL document version. Always required at the document root. Not required for a Process embedded inside another Process.
A long, human-readable description of this process object.
The expression to execute. The expression must return a JSON object which matches the output parameters of the ExpressionTool.
Declares hints applying to either the runtime environment or the workflow engine that may be helpful in executing this process. It is not an error if an implementation cannot satisfy all hints, however the implementation may report a warning.
The unique identifier for this process object.
Defines the input parameters of the process. The process is ready to run when all required input parameters are associated with concrete values. Input parameters include a schema for each parameter which is used to validate the input object. It may also be used to build a user interface for constructing the input object. When accepting an input object, all input parameters must have a value. If an input parameter is missing from the input object, it must be assigned a value of null (or the value of default for that parameter, if provided) for the purposes of validation and evaluation of expressions.
A short, human-readable label of this process object.
Defines the parameters representing the output of the process. May be used to generate and/or validate the output object.
Declares requirements that apply to either the runtime environment or the workflow engine that must be met in order to execute this process. If an implementation cannot satisfy all requirements, or a requirement is listed which is not recognized by the implementation, it is a fatal error and the implementation must not attempt to run the process, unless overridden at user option.
Execute an expression as a Workflow step.