...

Users can view the status of an issue using the Task List and its built-in search capabilities. You can search for any workflows that you have participated in. For all such workflows, you can view its history. The history can also contain annotations e.g. a brief summary of the last action taken.

Ad hoc workflow

...

- pass steps between arbitrary users

In some cases, you may want multiple actions taken during a step in the workflow but in an ad-hoc manner. For example, consider a workflow to review a proposal. The first step is the Proposal entry and the second step is the Reviews. However, a number of users may review the proposal in any ad-hoc order. In this situation, you should leave the roles blank and use a dynamic User as described above. In addition, make sure that the Save to User and Save/Load checkboxes are checked. You should also make sure that Save/Load is enabled for the flow as a whole.

...