Activity/Course completion http://docs.moodle.org/en/Course_completion is a new feature in Moodle 2.0:
• Teachers can now specify a Course completion condition standard for all students. Conditions include activity completion, but could also be by grade, date or a number of other criteria.
• Teachers can use the above standard as a prerequisite to other courses that allows ordered progression and scaffolding.
• Teachers and students can see reports that show the progress within a course, or through a series of courses Less