Assigning activities

For any activity with a BPM service implementation, you can designate the users who receive the runtime task by using the Assignments page in the properties for that activity.

1. In the Designer view, click an activity in a BPD diagram to display its properties.
2. Go to the Assignments page in the properties view.
3. From the Assign To list, choose one of the following options:

   Table 1. Assignment Options

   Option	Description
   Last User in Lane	Assigns the runtime task to the user who completed the activity that immediately precedes the selected activity in the swimlane. Do not select this option for the first activity in a lane unless the activity is a service in a top-level BPD and a Start Event is in the lane. In this case, the runtime task is routed to the user who started the BPD.
   Lane Participant	Assigns the runtime task to the participant group associated to the swimlane in which the selected activity is located (the default selection).
   Routing Policy	Assigns the runtime task according to the policy that you establish.
   List of Users	Assigns the runtime task to an ad hoc list of users.
   Custom	Assigns the runtime task according to the JavaScript expression that you provide in the corresponding field. To select one or more variables for your expression, click the variable selection icon next to the field. The JavaScript expression produces results such as USER:<user_name>, ROLE:<group_name>, or PG:<participant_group>, where user_name is the name of an IBM® BPM user (such as tw_author), group_name is the name of an IBM BPM security group (such as tw_authors), and participant_group is the name of a group of users in your enterprise. Note: Complex JavaScript expressions can be typed in or pasted into the Expression field and can be customized as required. More valid expressions can be chained together to produce a complex JavaScript expression, for example tw.local.isWeekendCrew?"ROLE:WeekendManagers":"ROLE:Managers".

4. From the User Distribution list, choose one of the following options:

   Table 2. User Distribution

   Option	Description
   None	IBM BPM assigns the runtime task to all potential users (the default setting).
   Load Balance	From the potential users who can receive the runtime task, IBM BPM assigns to the users who have the fewest number of open tasks.
   Round Robin	From the potential users who can receive the runtime task, IBM BPM assigns to users in a round-robin fashion. For example, if the users in the Call Center participant group must receive the runtime task, IBM BPM assigns each task (created by each process instance) in a series–to one user in the group after another.