This prototype describes software that allows language learners to assemble video dialogues from a large library of clips ... although the selection of tools available to the learner is limited to inserting and deleting clips, previewing clips, and viewing the sequence under construction, the number of unique paths a learner may take during this experience is too great for the software designer to envision them all. The dialogue between the learner and the program is under the learner's control.

We would extend Schweir and Misanchuk's definition of proactive interactivity by asserting that this type of interactivity is also characterized by an extension beyond the computer and the program - in other words, when the learner controls the dialogue and the software designer does not know all the possible outcomes, then some of the instructional experience must be occuring outside the environment of the program. In the case of this prototype, we may envision that the student is submitting a constructed dialogue to an instructor for evaluation, or playing back dialogues to peers for listening comprehension practice.