No, very few of our students produce ‘markable’ work, in the generally understood way. We use apps for activities such as cause and effect, for example. The progress of our learners is seen more often in soft skills. Actually, I’ll link you my blog post because I think that explains it better than I can do here. However, just because our measurements tend not to be ‘standard’ does not mean we do not need to do them – we do! But the how of it is remarkably tricky and whilst the program I specify contains all that we need, there are technological problems with it : http://fernf.com/2014/06/04/octel-week-4-supporting-learners-through-assessment-and-feedback-using-tel/