OK. You are ready for the next step.The system has also a learner profile defined on a set of learning objectives and representing a current "picture" of learner's achievement of those learning objectives. It is updated automatically after each interaction of the system with the learner. That is why system knows what the learner mastered and what not yet and can reveal the gaps.And all materials/questions are associated with those learning objectives. That is why if system see the gap in achievement, it can find materials to fill the gap.
