This image shows the following boxes from top to bottom:
AssignTaskAttributes - Captures the user-defined attributes of the task such as title, payload, creator, priority, and so on
AssignSystemTaskAttributes - Captures the system task attributes such as process id, process version, and so on
InitiateTask - Initiates the task by invoking the task service
AssignWorkflowContext - Assigns the workflow context to sue for interactions with the workflow service
A Pick activity with four receive activities from left to right:
Receive on TaskCompleted message
Receive on TaskAssigned message
Receive on TaskUpdated message
Receive on SubTaskUpdate message
Each Receive activity points to a separate box labeled User customizations.