When "Managing Sales Lead Assignment Objects," specifically Sales Lead Resources under Sales Leads,

Under the task "Managing Sales Lead Assignment Objects," specifically Sales Lead Resources under Sales Leads, was wondering what "Team View Object Instance" and "No Matches Handling" encompass? How do these settings affect Lead Assignment, and how are they different from creating Lead Assignment Rules or Scheduling Lead Assignment Processes? Cannot find Oracle documentation detailing what these options are and how they are used.