Using tools like the proposed behaviour compose seem to be supported by digital literacy strategies e.g.:
Martin, A. (2006) The landscape of digital literacy. Available at: http://www.digeulit.ec/docs/public.asp (Accessed June 2006).
I have joined a group in facebook to discuss this further:
http://oxford.facebook.com/topic.php?uid=2469564993&topic=2865
If the reader is interested in commenting on the role of programming environments/ graphical modelling tools and digital literacy they might want to join this forum, rather than comment on this blog.