Using the Resource Selection Strategy feature, Work Assignment selects the most suitable resource from the pool of resources. If Work Assignment does not find any available resource, Work Assignment keeps the work item in the queue and applies Work Selection Strategy.

You can specify the following Resource Selection Strategies:

• Most Idle: Work Assignment selects a resource that has not processed any work for the longest time.

• Least Occupied: Work Assignment selects the resource that is least occupied.

  Occupancy is the ratio of the time in busy state to the time in available state. Work Assignment updates this metric for all resources at an interval of 18 seconds.