Use Outcomes to measure student mastery of activities or courses.
Outcomes describe what students demonstrate or achieve after they have successfully completed an activity or course. Instructors use an Outcomes scale when grading to determine if students have met the criteria.
You must turn Outcomes on for instructors to use it. In Site administration select Advanced features. Select Enable outcomes and save the changes.
More about outcomes on the Moodle website (may be available in English only)