| undefined step |
Step type with no functionality, which can be inserted into a workflow definition as a placeholder to make the definition clearer.
An undefined step is always followed by an outcome. Together they form a unit, ensuring the consistency of a workflow definition.
The initial representation of a workflow definition contains an undefined step and an associated outcome. Undefined steps are also inserted when individual steps are to be incorporated in a generated block, but they still require specification according to particular rules.