Set a goal as percent of total Story Points of that whole team achieve during multiple Sprints. As set a level that acknowledge and reward performers in the team. Allow them to track their goal progress during the whole evaluation period.
Recognize the ownership either by using custom fields (e.g. ‘Developed by’ ) or using JQL data segmentation for identifying transitioning from status to status of certain user. (e.g. status CHANGED FROM “In Progress” TO “Resolved” BY linda.jones or resolution CHANGED TO “Completed” BY linda.jones ).
More details on how to collect data e.g. ‘Developed by’, ‘Tested by’ might be found under following article.
Check recording with the KPI configuration steps leveraging Performance Objectives dashboard gadget for JIRA: