The purpose of Advanced Task Assignment is to provide an additional layer of filtering to assign Work Items. Thus, users receive the WI due to Service-Level Agreement (SLA) with proper skills to complete the Work Item, which is specifically set by the business preferences.
The system can accomplish the advanced-task filtering by changing the behavior of the Get From Pool button on the Dashboard. When a user clicks the Get From Pool button, the system compares the user's list of held skills against the skill assignment of the top queued Work Items. Then, if there is a match, the system assigns the Work Item with the highest priority and soonest SLA to the user.
The Skill Priority Pyramid