Comparison of Unbounded and Bounded Task Flows
Unbounded task flow: A set of activities, control flow rules, and managed beans interacting to allow a user to complete a task. An unbounded task flow consists of all activities and control flows in an application that are not included within any bounded task flow.
Bounded task flow: A specialized form of task flow, having a single entry point and one or more exit points. It contains its own set of private control flow rules, activities and managed beans. An ADF bounded task flow allows reuse, parameters, transaction management and reentry. It can have zero to many exit points.