We now have a published workflow which can be used by anyone in the firm. An export of the workflow can be downloaded from here.

Our next step is to make the workflow multi-user, allowing the line manager of the individual concerned responsible for signing off holiday.

Then we will look at making a split workflow, allowing both HR and the line manager concurrent signoff on the holiday. Finally we will add escalation to ensure that the workflow finishes in timely fashion.

It is also worth reading about the actions which can be used in a workflow.