In order to action a task (i.e. invoke the available functions for a task), a user must first add that task to their My Open Tasks list. This can be done by using the Add To My Tasks function which may be specified from the Available Tasks search page results list or the Task Home page.
The My Open Tasks list therefore displays all of the tasks with a status of Open. Tasks that appear in this list no longer appear in the user's Available Tasks list and are also not available to any other user in the application.