A contact center is described along with various methods and mechanisms for administering the same. The contact center proposed herein provides the ability to, among other things, define, in real-time, qualifier set combinations for work items. Thus, the contact center can create a dictionary of combinations of work item attributes that may be defined as work items are introduced to the system. The definition of the combinations allows for large qualifier sets without the large expenditure of resources to define all possible combinations of attributes for the contact center.