Mahara is a learner-centred environment and any assessment process you conduct within it should not sacrifice its learner-driven principles. Controlled or request groups that allow page submission make this possible. It is the learners themselves who get to choose exactly what work they submit and when. This, we believe, is the way things should be.
Let's see what a learner has to do to submit a page for assessment by a tutor or administrator in a controlled group that has page submission enabled in its group settings.