Figure 7.

Process model of student 12F67F in PRE (left) and POST (center), and a generic expert EXP (right). Activities in set trocar and check catheter phases are clustered for the sake of readability (they show no difference in order between PRE, POST and EXP). Activity names are shortened and both action and checking activities are shown. Regarding O2.1, the PRE model shows the student checked the guidewire and then removed the trocar; however, it is desirable to do these activities in the opposite order, because removing the trocar may affect the position of the guidewire. Regarding O2.2, POST model is able to capture that the student learned to perform the activities in the right order, and the process match exactly the reference process for the procedure performed by the EXP (O2.3).