Systems and methods are provided for processing loan applications in dynamic workflows. In a preferred embodiment, a system calls an activity engine with a top-level activity for processing a work-item, e.g., a loan application. The activity engine decomposes the top-level activity into child activities and lower-level child activities, and recursively calls itself to process the child activities until all constituent child activities have been preformed, thus performing the original top-level activity. In the preferred embodiment, each activity, work-item, user, event and role has associated rules, wherein an event represents a change in state of an activity and a role represents a class of users of the system having shared attributes. The evaluation of the associated rules dynamically creates the flow of activities, thereby creating a dynamic workflow.